40904159 has 8 divisors (see below), whose sum is σ = 44707968. Its totient is φ = 37255680.

The previous prime is 40904153. The next prime is 40904161. The reversal of 40904159 is 95140904.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40904159 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 (40904153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38282 + ... + 39335.

It is an arithmetic number, because the mean of its divisors is an integer number (5588496).

Almost surely, 2^40904159 is an apocalyptic number.

40904159 is a deficient number, since it is larger than the sum of its proper divisors (3803809).

40904159 is a wasteful number, since it uses less digits than its factorization.

40904159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77665.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 40904159 is about 6395.6359339787. The cubic root of 40904159 is about 344.5528310039.

The spelling of 40904159 in words is "forty million, nine hundred four thousand, one hundred fifty-nine".