40939015 has 16 divisors (see below), whose sum is σ = 55692000. Its totient is φ = 28639872.

The previous prime is 40939013. The next prime is 40939051. The reversal of 40939015 is 51093904.

It is a cyclic number.

It is not a de Polignac number, because 40939015 - 2¹ = 40939013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40939013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15340 + ... + 17809.

It is an arithmetic number, because the mean of its divisors is an integer number (3480750).

Almost surely, 2^40939015 is an apocalyptic number.

40939015 is a deficient number, since it is larger than the sum of its proper divisors (14752985).

40939015 is a wasteful number, since it uses less digits than its factorization.

40939015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33186.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 40939015 is about 6398.3603368363. The cubic root of 40939015 is about 344.6506721042.

The spelling of 40939015 in words is "forty million, nine hundred thirty-nine thousand, fifteen".