72222850 has 24 divisors (see below), whose sum is σ = 153525888. Its totient is φ = 24762000.

The previous prime is 72222823. The next prime is 72222863. The reversal of 72222850 is 5822227.

It is a super-2 number, since 2×72222850² = 10432280124245000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102826 + ... + 103525.

It is an arithmetic number, because the mean of its divisors is an integer number (6396912).

Almost surely, 2^72222850 is an apocalyptic number.

72222850 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72222850 is an abundant number, since it is smaller than the sum of its proper divisors (81303038).

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

72222850 is a wasteful number, since it uses less digits than its factorization.

72222850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206370 (or 206365 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 72222850 is about 8498.4027911132. The cubic root of 72222850 is about 416.4455324377.

The spelling of 72222850 in words is "seventy-two million, two hundred twenty-two thousand, eight hundred fifty".