40315492 has 24 divisors (see below), whose sum is σ = 84875840. Its totient is φ = 16368480.

The previous prime is 40315489. The next prime is 40315523. The reversal of 40315492 is 29451304.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 40315492.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37359 + ... + 38422.

Almost surely, 2^40315492 is an apocalyptic number.

It is an amenable number.

40315492 is an abundant number, since it is smaller than the sum of its proper divisors (44560348).

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

40315492 is a wasteful number, since it uses less digits than its factorization.

40315492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75811 (or 75809 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40315492 is about 6349.4481649983. The cubic root of 40315492 is about 342.8919752640.

Adding to 40315492 its reverse (29451304), we get a palindrome (69766796).

The spelling of 40315492 in words is "forty million, three hundred fifteen thousand, four hundred ninety-two".