40904272 has 20 divisors (see below), whose sum is σ = 79408980. Its totient is φ = 20411648.

The previous prime is 40904263. The next prime is 40904273. The reversal of 40904272 is 27240904.

It can be written as a sum of positive squares in 2 ways, for example, as 27625536 + 13278736 = 5256^2 + 3644^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40904272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40904273) 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, 6858 + ... + 11350.

It is an arithmetic number, because the mean of its divisors is an integer number (3970449).

Almost surely, 2^40904272 is an apocalyptic number.

It is an amenable number.

40904272 is a deficient number, since it is larger than the sum of its proper divisors (38504708).

40904272 is a wasteful number, since it uses less digits than its factorization.

40904272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5070 (or 5064 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 40904272 is about 6395.6447681215. The cubic root of 40904272 is about 344.5531482856.

The spelling of 40904272 in words is "forty million, nine hundred four thousand, two hundred seventy-two".