404370623 has 2 divisors, whose sum is σ = 404370624. Its totient is φ = 404370622.

The previous prime is 404370611. The next prime is 404370641. The reversal of 404370623 is 326073404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404370623 - 2⁴ = 404370607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404370643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202185311 + 202185312.

It is an arithmetic number, because the mean of its divisors is an integer number (202185312).

Almost surely, 2^404370623 is an apocalyptic number.

404370623 is a deficient number, since it is larger than the sum of its proper divisors (1).

404370623 is an equidigital number, since it uses as much as digits as its factorization.

404370623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 404370623 is about 20108.9687204491. The cubic root of 404370623 is about 739.4801699810.

The spelling of 404370623 in words is "four hundred four million, three hundred seventy thousand, six hundred twenty-three".