40637487 has 12 divisors (see below), whose sum is σ = 59557400. Its totient is φ = 24628560.

The previous prime is 40637473. The next prime is 40637503. The reversal of 40637487 is 78473604.

It is a happy number.

It is not a de Polignac number, because 40637487 - 2¹² = 40633391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40637417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55612 + ... + 56337.

Almost surely, 2^40637487 is an apocalyptic number.

40637487 is a deficient number, since it is larger than the sum of its proper divisors (18919913).

40637487 is a wasteful number, since it uses less digits than its factorization.

40637487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111974 (or 111963 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 40637487 is about 6374.7538776019. The cubic root of 40637487 is about 343.8024346680.

The spelling of 40637487 in words is "forty million, six hundred thirty-seven thousand, four hundred eighty-seven".