72247300 has 36 divisors (see below), whose sum is σ = 157157476. Its totient is φ = 28828800.

The previous prime is 72247261. The next prime is 72247327. The reversal of 72247300 is 374227.

It can be written as a sum of positive squares in 6 ways, for example, as 8375236 + 63872064 = 2894^2 + 7992^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65554 + ... + 66646.

Almost surely, 2^72247300 is an apocalyptic number.

It is an amenable number.

72247300 is an abundant number, since it is smaller than the sum of its proper divisors (84910176).

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

72247300 is a wasteful number, since it uses less digits than its factorization.

72247300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768 (or 1761 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 72247300 is about 8499.8411749867. The cubic root of 72247300 is about 416.4925210038.

The spelling of 72247300 in words is "seventy-two million, two hundred forty-seven thousand, three hundred".