40331043392 has 14 divisors (see below), whose sum is σ = 80031914358. Its totient is φ = 20165521664.

The previous prime is 40331043371. The next prime is 40331043397. The reversal of 40331043392 is 29334013304.

It can be written as a sum of positive squares in only one way, i.e., 39007830016 + 1323213376 = 197504^2 + 36376^2 .

It is a super-2 number, since 2×40331043392² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (40331043397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315086213 + ... + 315086340.

Almost surely, 2^40331043392 is an apocalyptic number.

It is an amenable number.

40331043392 is a deficient number, since it is larger than the sum of its proper divisors (39700870966).

40331043392 is an equidigital number, since it uses as much as digits as its factorization.

40331043392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630172565 (or 630172555 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 32.

Adding to 40331043392 its reverse (29334013304), we get a palindrome (69665056696).

The spelling of 40331043392 in words is "forty billion, three hundred thirty-one million, forty-three thousand, three hundred ninety-two".