40392312 has 16 divisors (see below), whose sum is σ = 100980840. Its totient is φ = 13464096.

The previous prime is 40392311. The next prime is 40392343. The reversal of 40392312 is 21329304.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1683013 = 40392312 / (4 + 0 + 3 + 9 + 2 + 3 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40392311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841483 + ... + 841530.

Almost surely, 2^40392312 is an apocalyptic number.

It is an amenable number.

40392312 is an abundant number, since it is smaller than the sum of its proper divisors (60588528).

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

40392312 is a wasteful number, since it uses less digits than its factorization.

40392312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683022 (or 1683018 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 40392312 is about 6355.4946306326. The cubic root of 40392312 is about 343.1096273152.

It can be divided in two parts, 40392 and 312, that added together give a palindrome (40704).

The spelling of 40392312 in words is "forty million, three hundred ninety-two thousand, three hundred twelve".