40350512420 has 96 divisors (see below), whose sum is σ = 93441600000. Its totient is φ = 14576260608.

The previous prime is 40350512417. The next prime is 40350512429. The reversal of 40350512420 is 2421505304.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40350512420.

It is not an unprimeable number, because it can be changed into a prime (40350512429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 847406 + ... + 893754.

It is an arithmetic number, because the mean of its divisors is an integer number (973350000).

Almost surely, 2^40350512420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40350512420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46720800000).

40350512420 is an abundant number, since it is smaller than the sum of its proper divisors (53091087580).

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

40350512420 is a wasteful number, since it uses less digits than its factorization.

40350512420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46485 (or 46483 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 40350512420 in words is "forty billion, three hundred fifty million, five hundred twelve thousand, four hundred twenty".