40904273 has 2 divisors, whose sum is σ = 40904274. Its totient is φ = 40904272.

The previous prime is 40904263. The next prime is 40904387. The reversal of 40904273 is 37240904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40666129 + 238144 = 6377^2 + 488^2 .

It is a cyclic number.

It is not a de Polignac number, because 40904273 - 2⁴ = 40904257 is a prime.

It is not a weakly prime, because it can be changed into another prime (40904233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20452136 + 20452137.

It is an arithmetic number, because the mean of its divisors is an integer number (20452137).

Almost surely, 2^40904273 is an apocalyptic number.

It is an amenable number.

40904273 is a deficient number, since it is larger than the sum of its proper divisors (1).

40904273 is an equidigital number, since it uses as much as digits as its factorization.

40904273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 40904273 is about 6395.6448462997. The cubic root of 40904273 is about 344.5531510934.

The spelling of 40904273 in words is "forty million, nine hundred four thousand, two hundred seventy-three".