124401720 has 32 divisors (see below), whose sum is σ = 373205520. Its totient is φ = 33173760.

The previous prime is 124401701. The next prime is 124401743. The reversal of 124401720 is 27104421.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 518221 + ... + 518460.

Almost surely, 2^124401720 is an apocalyptic number.

124401720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124401720 is an abundant number, since it is smaller than the sum of its proper divisors (248803800).

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

124401720 is a wasteful number, since it uses less digits than its factorization.

124401720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036695 (or 1036691 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 124401720 is about 11153.5519006279. The cubic root of 124401720 is about 499.2010172666.

The spelling of 124401720 in words is "one hundred twenty-four million, four hundred one thousand, seven hundred twenty".