124990400 has 84 divisors (see below), whose sum is σ = 309920640. Its totient is φ = 49612800.

The previous prime is 124990399. The next prime is 124990421. The reversal of 124990400 is 4099421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305396 + ... + 305804.

Almost surely, 2^124990400 is an apocalyptic number.

124990400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124990400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154960320).

124990400 is an abundant number, since it is smaller than the sum of its proper divisors (184930240).

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

124990400 is a wasteful number, since it uses less digits than its factorization.

124990400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 124990400 is about 11179.9105542039. The cubic root of 124990400 is about 499.9871996723.

The spelling of 124990400 in words is "one hundred twenty-four million, nine hundred ninety thousand, four hundred".