40031223628 has 24 divisors (see below), whose sum is σ = 78287230224. Its totient is φ = 17752204800.

The previous prime is 40031223613. The next prime is 40031223653. The reversal of 40031223628 is 82632213004.

It is a self number, because there is not a number n which added to its sum of digits gives 40031223628.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11093325 + ... + 11096932.

It is an arithmetic number, because the mean of its divisors is an integer number (3261967926).

Almost surely, 2^40031223628 is an apocalyptic number.

It is an amenable number.

40031223628 is a deficient number, since it is larger than the sum of its proper divisors (38256006596).

40031223628 is a wasteful number, since it uses less digits than its factorization.

40031223628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22190313 (or 22190311 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 40031223628 in words is "forty billion, thirty-one million, two hundred twenty-three thousand, six hundred twenty-eight".