40315040 has 24 divisors (see below), whose sum is σ = 95244660. Its totient is φ = 16125952.

The previous prime is 40315027. The next prime is 40315069. The reversal of 40315040 is 4051304.

It can be written as a sum of positive squares in 2 ways, for example, as 39790864 + 524176 = 6308^2 + 724^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125825 + ... + 126144.

Almost surely, 2^40315040 is an apocalyptic number.

40315040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40315040 is an abundant number, since it is smaller than the sum of its proper divisors (54929620).

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

40315040 is a wasteful number, since it uses less digits than its factorization.

40315040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251984 (or 251976 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 40315040 is about 6349.4125712541. The cubic root of 40315040 is about 342.8906938066.

Adding to 40315040 its reverse (4051304), we get a palindrome (44366344).

The spelling of 40315040 in words is "forty million, three hundred fifteen thousand, forty".