72822570 has 64 divisors (see below), whose sum is σ = 179159040. Its totient is φ = 18939200.

The previous prime is 72822553. The next prime is 72822613. The reversal of 72822570 is 7522827.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381175 + ... + 381365.

It is an arithmetic number, because the mean of its divisors is an integer number (2799360).

Almost surely, 2^72822570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72822570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89579520).

72822570 is an abundant number, since it is smaller than the sum of its proper divisors (106336470).

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

72822570 is a wasteful number, since it uses less digits than its factorization.

72822570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 72822570 is about 8533.6141229845. The cubic root of 72822570 is about 417.5950421271.

The spelling of 72822570 in words is "seventy-two million, eight hundred twenty-two thousand, five hundred seventy".