40331064 has 16 divisors (see below), whose sum is σ = 100827720. Its totient is φ = 13443680.

The previous prime is 40331059. The next prime is 40331069. The reversal of 40331064 is 46013304.

It is an interprime number because it is at equal distance from previous prime (40331059) and next prime (40331069).

It is a self number, because there is not a number n which added to its sum of digits gives 40331064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40331069) 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, 840207 + ... + 840254.

Almost surely, 2^40331064 is an apocalyptic number.

It is an amenable number.

40331064 is an abundant number, since it is smaller than the sum of its proper divisors (60496656).

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

40331064 is a wasteful number, since it uses less digits than its factorization.

40331064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680470 (or 1680466 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 40331064 is about 6350.6742949076. The cubic root of 40331064 is about 342.9361173233.

Adding to 40331064 its reverse (46013304), we get a palindrome (86344368).

The spelling of 40331064 in words is "forty million, three hundred thirty-one thousand, sixty-four".