40904359 has 4 divisors (see below), whose sum is σ = 43057240. Its totient is φ = 38751480.

The previous prime is 40904273. The next prime is 40904387. The reversal of 40904359 is 95340904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40904359 - 2¹¹ = 40902311 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 (40904399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076412 + ... + 1076449.

It is an arithmetic number, because the mean of its divisors is an integer number (10764310).

Almost surely, 2^40904359 is an apocalyptic number.

40904359 is a deficient number, since it is larger than the sum of its proper divisors (2152881).

40904359 is a wasteful number, since it uses less digits than its factorization.

40904359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152880.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 40904359 is about 6395.6515696213. The cubic root of 40904359 is about 344.5533925641.

The spelling of 40904359 in words is "forty million, nine hundred four thousand, three hundred fifty-nine".