40031080 has 16 divisors (see below), whose sum is σ = 90070020. Its totient is φ = 16012416.

The previous prime is 40031071. The next prime is 40031113. The reversal of 40031080 is 8013004.

It can be written as a sum of positive squares in 2 ways, for example, as 39413284 + 617796 = 6278^2 + 786^2 .

40031080 is a modest number, since divided by 31080 gives 40 as remainder.

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, 500349 + ... + 500428.

Almost surely, 2^40031080 is an apocalyptic number.

40031080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40031080 is an abundant number, since it is smaller than the sum of its proper divisors (50038940).

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

40031080 is a wasteful number, since it uses less digits than its factorization.

40031080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000788 (or 1000784 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 40031080 is about 6327.0119329744. The cubic root of 40031080 is about 342.0837431579.

Adding to 40031080 its reverse (8013004), we get a palindrome (48044084).

The spelling of 40031080 in words is "forty million, thirty-one thousand, eighty".