923423400 has 72 divisors (see below), whose sum is σ = 3101169630. Its totient is φ = 246245760.

The previous prime is 923423363. The next prime is 923423411. The reversal of 923423400 is 4324329.

It is a happy number.

923423400 is a `hidden beast` number, since 9 + 234 + 23 + 400 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 472540644 + 450882756 = 21738^2 + 21234^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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 17 ways as a sum of consecutive naturals, for example, 254707 + ... + 258306.

Almost surely, 2^923423400 is an apocalyptic number.

923423400 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

923423400 is an abundant number, since it is smaller than the sum of its proper divisors (2177746230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

923423400 is a wasteful number, since it uses less digits than its factorization.

923423400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513035 (or 513023 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 923423400 is about 30387.8824533728. The cubic root of 923423400 is about 973.7936955097.

Adding to 923423400 its reverse (4324329), we get a palindrome (927747729).

The spelling of 923423400 in words is "nine hundred twenty-three million, four hundred twenty-three thousand, four hundred".