124412640 has 96 divisors (see below), whose sum is σ = 427545216. Its totient is φ = 30159360.

The previous prime is 124412599. The next prime is 124412653. The reversal of 124412640 is 46214421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 124412640.

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 15 ways as a sum of consecutive naturals, for example, 6502 + ... + 17061.

It is an arithmetic number, because the mean of its divisors is an integer number (4453596).

Almost surely, 2^124412640 is an apocalyptic number.

124412640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124412640 is an abundant number, since it is smaller than the sum of its proper divisors (303132576).

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

124412640 is a wasteful number, since it uses less digits than its factorization.

124412640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23592 (or 23584 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 124412640 is about 11154.0414200414. The cubic root of 124412640 is about 499.2156234837.

The spelling of 124412640 in words is "one hundred twenty-four million, four hundred twelve thousand, six hundred forty".