72257358 has 8 divisors (see below), whose sum is σ = 144514728. Its totient is φ = 24085784.

The previous prime is 72257351. The next prime is 72257369. The reversal of 72257358 is 85375227.

It is a sphenic number, since it is the product of 3 distinct primes.

72257358 is an admirable number.

It is a super-2 number, since 2×72257358² = 10442251570280328, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72257351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6021441 + ... + 6021452.

It is an arithmetic number, because the mean of its divisors is an integer number (18064341).

Almost surely, 2^72257358 is an apocalyptic number.

72257358 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72257358 is a wasteful number, since it uses less digits than its factorization.

72257358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12042898.

The product of its digits is 117600, while the sum is 39.

The square root of 72257358 is about 8500.4328125102. The cubic root of 72257358 is about 416.5118476195.

The spelling of 72257358 in words is "seventy-two million, two hundred fifty-seven thousand, three hundred fifty-eight".