40987624 has 8 divisors (see below), whose sum is σ = 76851810. Its totient is φ = 20493808.

The previous prime is 40987613. The next prime is 40987627. The reversal of 40987624 is 42678904.

It can be written as a sum of positive squares in only one way, i.e., 32285124 + 8702500 = 5682^2 + 2950^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (40987627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2561719 + ... + 2561734.

Almost surely, 2^40987624 is an apocalyptic number.

It is an amenable number.

40987624 is a deficient number, since it is larger than the sum of its proper divisors (35864186).

40987624 is a wasteful number, since it uses less digits than its factorization.

40987624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123459 (or 5123455 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 40987624 is about 6402.1577612552. The cubic root of 40987624 is about 344.7870253137.

The spelling of 40987624 in words is "forty million, nine hundred eighty-seven thousand, six hundred twenty-four".