40521010432 has 108 divisors (see below), whose sum is σ = 93068111136. Its totient is φ = 17248619520.

The previous prime is 40521010381. The next prime is 40521010471. The reversal of 40521010432 is 23401012504.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 70964707 + ... + 70965277.

Almost surely, 2^40521010432 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 40521010432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46534055568).

40521010432 is an abundant number, since it is smaller than the sum of its proper divisors (52547100704).

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

40521010432 is an frugal number, since it uses more digits than its factorization.

40521010432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 40521010432 its reverse (23401012504), we get a palindrome (63922022936).

The spelling of 40521010432 in words is "forty billion, five hundred twenty-one million, ten thousand, four hundred thirty-two".