72022380 has 24 divisors (see below), whose sum is σ = 201662832. Its totient is φ = 19205952.

The previous prime is 72022373. The next prime is 72022417. The reversal of 72022380 is 8322027.

It is a self number, because there is not a number n which added to its sum of digits gives 72022380.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600127 + ... + 600246.

It is an arithmetic number, because the mean of its divisors is an integer number (8402618).

Almost surely, 2^72022380 is an apocalyptic number.

It is an amenable number.

72022380 is an abundant number, since it is smaller than the sum of its proper divisors (129640452).

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

72022380 is a wasteful number, since it uses less digits than its factorization.

72022380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200385 (or 1200383 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 72022380 is about 8486.6000259232. The cubic root of 72022380 is about 416.0598641043.

The spelling of 72022380 in words is "seventy-two million, twenty-two thousand, three hundred eighty".