42400042402240 has 56 divisors (see below), whose sum is σ = 101030282978400. Its totient is φ = 16949067752448.

The previous prime is 42400042402217. The next prime is 42400042402241. The reversal of 42400042402240 is 4220424000424.

It is a junction number, because it is equal to n+sod(n) for n = 42400042402199 and 42400042402208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42400042402241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42273892 + ... + 43265251.

Almost surely, 2^{42400042402240} is an apocalyptic number.

42400042402240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42400042402240 is an abundant number, since it is smaller than the sum of its proper divisors (58630240576160).

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

42400042402240 is a wasteful number, since it uses less digits than its factorization.

42400042402240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85540709 (or 85540699 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 42400042402240 its reverse (4220424000424), we get a palindrome (46620466402664).

The spelling of 42400042402240 in words is "forty-two trillion, four hundred billion, forty-two million, four hundred two thousand, two hundred forty".