124320072 has 16 divisors (see below), whose sum is σ = 310800240. Its totient is φ = 41440016.

The previous prime is 124320067. The next prime is 124320089. The reversal of 124320072 is 270023421.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2589978 + ... + 2590025.

It is an arithmetic number, because the mean of its divisors is an integer number (19425015).

Almost surely, 2^124320072 is an apocalyptic number.

124320072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

124320072 is an abundant number, since it is smaller than the sum of its proper divisors (186480168).

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

124320072 is a wasteful number, since it uses less digits than its factorization.

124320072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5180012 (or 5180008 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 124320072 is about 11149.8911205446. The cubic root of 124320072 is about 499.0917806073.

Adding to 124320072 its reverse (270023421), we get a palindrome (394343493).

The spelling of 124320072 in words is "one hundred twenty-four million, three hundred twenty thousand, seventy-two".