124990398 has 64 divisors (see below), whose sum is σ = 314899200. Its totient is φ = 36430560.

The previous prime is 124990391. The next prime is 124990399. The reversal of 124990398 is 893099421.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124990391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8653 + ... + 18023.

It is an arithmetic number, because the mean of its divisors is an integer number (4920300).

Almost surely, 2^124990398 is an apocalyptic number.

124990398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 124990398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157449600).

124990398 is an abundant number, since it is smaller than the sum of its proper divisors (189908802).

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

124990398 is a wasteful number, since it uses less digits than its factorization.

124990398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9414 (or 9408 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 124990398 is about 11179.9104647578. The cubic root of 124990398 is about 499.9871970055.

The spelling of 124990398 in words is "one hundred twenty-four million, nine hundred ninety thousand, three hundred ninety-eight".