72724350 has 24 divisors (see below), whose sum is σ = 180356760. Its totient is φ = 19393120.

The previous prime is 72724349. The next prime is 72724361. The reversal of 72724350 is 5342727.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242265 + ... + 242564.

It is an arithmetic number, because the mean of its divisors is an integer number (7514865).

Almost surely, 2^72724350 is an apocalyptic number.

72724350 is an abundant number, since it is smaller than the sum of its proper divisors (107632410).

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

72724350 is a wasteful number, since it uses less digits than its factorization.

72724350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484844 (or 484839 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 72724350 is about 8527.8572924270. The cubic root of 72724350 is about 417.4072128174.

The spelling of 72724350 in words is "seventy-two million, seven hundred twenty-four thousand, three hundred fifty".