72785230 has 16 divisors (see below), whose sum is σ = 149729760. Its totient is φ = 24954912.

The previous prime is 72785201. The next prime is 72785233. The reversal of 72785230 is 3258727.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72785233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519825 + ... + 519964.

It is an arithmetic number, because the mean of its divisors is an integer number (9358110).

Almost surely, 2^72785230 is an apocalyptic number.

72785230 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72785230 is an abundant number, since it is smaller than the sum of its proper divisors (76944530).

72785230 is a wasteful number, since it uses less digits than its factorization.

72785230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039803.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 72785230 is about 8531.4260238251. The cubic root of 72785230 is about 417.5236555375.

The spelling of 72785230 in words is "seventy-two million, seven hundred eighty-five thousand, two hundred thirty".