40939587 has 40 divisors (see below), whose sum is σ = 69765696. Its totient is φ = 23701248.

The previous prime is 40939583. The next prime is 40939589. The reversal of 40939587 is 78593904.

It is not a de Polignac number, because 40939587 - 2² = 40939583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40939583) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16758 + ... + 19044.

Almost surely, 2^40939587 is an apocalyptic number.

40939587 is a deficient number, since it is larger than the sum of its proper divisors (28826109).

40939587 is a wasteful number, since it uses less digits than its factorization.

40939587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329 (or 2320 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 40939587 is about 6398.4050356319. The cubic root of 40939587 is about 344.6522772500.

The spelling of 40939587 in words is "forty million, nine hundred thirty-nine thousand, five hundred eighty-seven".