623401024 has 21 divisors (see below), whose sum is σ = 1237457901. Its totient is φ = 311600640.

The previous prime is 623401019. The next prime is 623401027. The reversal of 623401024 is 420104326.

It is a happy number.

The square root of 623401024 is 24968.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 399424 + 623001600 = 632^2 + 24960^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 623400986 and 623401004.

It is not an unprimeable number, because it can be changed into a prime (623401027) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 198184 + ... + 201304.

Almost surely, 2^623401024 is an apocalyptic number.

623401024 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

623401024 is the 24968-th square number.

It is an amenable number.

623401024 is a deficient number, since it is larger than the sum of its proper divisors (614056877).

623401024 is an frugal number, since it uses more digits than its factorization.

623401024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6254 (or 3123 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The cubic root of 623401024 is about 854.2582278667.

The spelling of 623401024 in words is "six hundred twenty-three million, four hundred one thousand, twenty-four".