124979904 has 168 divisors, whose sum is σ = 414202880. Its totient is φ = 35292672.

The previous prime is 124979893. The next prime is 124979917. The reversal of 124979904 is 409979421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (168).

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 self number, because there is not a number n which added to its sum of digits gives 124979904.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 560337 + ... + 560559.

Almost surely, 2^124979904 is an apocalyptic number.

124979904 is a gapful number since it is divisible by the number (14) 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 124979904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207101440).

124979904 is an abundant number, since it is smaller than the sum of its proper divisors (289222976).

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

124979904 is a wasteful number, since it uses less digits than its factorization.

124979904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 124979904 is about 11179.4411309332. The cubic root of 124979904 is about 499.9732038973.

The spelling of 124979904 in words is "one hundred twenty-four million, nine hundred seventy-nine thousand, nine hundred four".