40291632504 has 96 divisors (see below), whose sum is σ = 112082770800. Its totient is φ = 13068034560.

The previous prime is 40291632481. The next prime is 40291632529. The reversal of 40291632504 is 40523619204.

It is a happy number.

40291632504 is a `hidden beast` number, since 4 + 0 + 2 + 91 + 63 + 2 + 504 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1100802 + ... + 1136814.

Almost surely, 2^40291632504 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 40291632504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56041385400).

40291632504 is an abundant number, since it is smaller than the sum of its proper divisors (71791138296).

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

40291632504 is a wasteful number, since it uses less digits than its factorization.

40291632504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36445 (or 36438 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 40291632504 in words is "forty billion, two hundred ninety-one million, six hundred thirty-two thousand, five hundred four".