72282020 has 12 divisors (see below), whose sum is σ = 151792284. Its totient is φ = 28912800.

The previous prime is 72282019. The next prime is 72282043. The reversal of 72282020 is 2028227.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20557156 + 51724864 = 4534^2 + 7192^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1807031 + ... + 1807070.

It is an arithmetic number, because the mean of its divisors is an integer number (12649357).

Almost surely, 2^72282020 is an apocalyptic number.

It is an amenable number.

72282020 is an abundant number, since it is smaller than the sum of its proper divisors (79510264).

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

72282020 is a wasteful number, since it uses less digits than its factorization.

72282020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614110 (or 3614108 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 72282020 is about 8501.8833207708. The cubic root of 72282020 is about 416.5592284770.

The spelling of 72282020 in words is "seventy-two million, two hundred eighty-two thousand, twenty".