72858730 has 64 divisors (see below), whose sum is σ = 163296000. Its totient is φ = 22837248.

The previous prime is 72858707. The next prime is 72858739. The reversal of 72858730 is 3785827.

It is not an unprimeable number, because it can be changed into a prime (72858739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37626 + ... + 39514.

It is an arithmetic number, because the mean of its divisors is an integer number (2551500).

Almost surely, 2^72858730 is an apocalyptic number.

72858730 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72858730 is an abundant number, since it is smaller than the sum of its proper divisors (90437270).

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

72858730 is a wasteful number, since it uses less digits than its factorization.

72858730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 72858730 is about 8535.7325403272. The cubic root of 72858730 is about 417.6641495392.

The spelling of 72858730 in words is "seventy-two million, eight hundred fifty-eight thousand, seven hundred thirty".