40087312 has 10 divisors (see below), whose sum is σ = 77669198. Its totient is φ = 20043648.

The previous prime is 40087297. The next prime is 40087339. The reversal of 40087312 is 21378004.

It can be written as a sum of positive squares in only one way, i.e., 38489616 + 1597696 = 6204^2 + 1264^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252713 + ... + 1252744.

Almost surely, 2^40087312 is an apocalyptic number.

It is an amenable number.

40087312 is a deficient number, since it is larger than the sum of its proper divisors (37581886).

40087312 is a wasteful number, since it uses less digits than its factorization.

40087312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505465 (or 2505459 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 40087312 is about 6331.4541773593. The cubic root of 40087312 is about 342.2438442015.

The spelling of 40087312 in words is "forty million, eighty-seven thousand, three hundred twelve".