72124300 has 18 divisors (see below), whose sum is σ = 156509948. Its totient is φ = 28849680.

The previous prime is 72124271. The next prime is 72124301. The reversal of 72124300 is 342127.

It is not an unprimeable number, because it can be changed into a prime (72124301) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 360522 + ... + 360721.

Almost surely, 2^72124300 is an apocalyptic number.

It is an amenable number.

72124300 is an abundant number, since it is smaller than the sum of its proper divisors (84385648).

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

72124300 is a wasteful number, since it uses less digits than its factorization.

72124300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721257 (or 721250 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 72124300 is about 8492.6026634949. The cubic root of 72124300 is about 416.2560292152.

Adding to 72124300 its reverse (342127), we get a palindrome (72466427).

The spelling of 72124300 in words is "seventy-two million, one hundred twenty-four thousand, three hundred".