124398720 has 256 divisors, whose sum is σ = 461203200. Its totient is φ = 31629312.

The previous prime is 124398689. The next prime is 124398733. The reversal of 124398720 is 27893421.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397284 + ... + 397596.

It is an arithmetic number, because the mean of its divisors is an integer number (1801575).

Almost surely, 2^124398720 is an apocalyptic number.

124398720 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 124398720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230601600).

124398720 is an abundant number, since it is smaller than the sum of its proper divisors (336804480).

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

124398720 is a wasteful number, since it uses less digits than its factorization.

124398720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 124398720 is about 11153.4174135105. The cubic root of 124398720 is about 499.1970044199.

The spelling of 124398720 in words is "one hundred twenty-four million, three hundred ninety-eight thousand, seven hundred twenty".