623409458 has 48 divisors (see below), whose sum is σ = 1115713440. Its totient is φ = 260398656.

The previous prime is 623409427. The next prime is 623409463. The reversal of 623409458 is 854904326.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 791741 + ... + 792527.

It is an arithmetic number, because the mean of its divisors is an integer number (23244030).

Almost surely, 2^623409458 is an apocalyptic number.

623409458 is a deficient number, since it is larger than the sum of its proper divisors (492303982).

623409458 is a wasteful number, since it uses less digits than its factorization.

623409458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 623409458 is about 24968.1688956159. The cubic root of 623409458 is about 854.2620802726.

The spelling of 623409458 in words is "six hundred twenty-three million, four hundred nine thousand, four hundred fifty-eight".