42403334420412 has 144 divisors (see below), whose sum is σ = 129728753586432. Its totient is φ = 11400429058560.

The previous prime is 42403334420407. The next prime is 42403334420417. The reversal of 42403334420412 is 21402443330424.

42403334420412 is a `hidden beast` number, since 4 + 2 + 403 + 3 + 3 + 44 + 204 + 1 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (42403334420407) and next prime (42403334420417).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42403334420417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21873987 + ... + 23733477.

It is an arithmetic number, because the mean of its divisors is an integer number (900894122128).

Almost surely, 2^{42403334420412} is an apocalyptic number.

42403334420412 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42403334420412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64864376793216).

42403334420412 is an abundant number, since it is smaller than the sum of its proper divisors (87325419166020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42403334420412 is a wasteful number, since it uses less digits than its factorization.

42403334420412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864848 (or 1864843 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 42403334420412 its reverse (21402443330424), we get a palindrome (63805777750836).

The spelling of 42403334420412 in words is "forty-two trillion, four hundred three billion, three hundred thirty-four million, four hundred twenty thousand, four hundred twelve".