72283622 has 4 divisors (see below), whose sum is σ = 108425436. Its totient is φ = 36141810.

The previous prime is 72283613. The next prime is 72283633. The reversal of 72283622 is 22638227.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18070904 + ... + 18070907.

It is an arithmetic number, because the mean of its divisors is an integer number (27106359).

Almost surely, 2^72283622 is an apocalyptic number.

72283622 is a deficient number, since it is larger than the sum of its proper divisors (36141814).

72283622 is a wasteful number, since it uses less digits than its factorization.

72283622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36141813.

The product of its digits is 16128, while the sum is 32.

The square root of 72283622 is about 8501.9775346680. The cubic root of 72283622 is about 416.5623058811.

The spelling of 72283622 in words is "seventy-two million, two hundred eighty-three thousand, six hundred twenty-two".