72220846 has 8 divisors (see below), whose sum is σ = 112066920. Its totient is φ = 34865208.

The previous prime is 72220823. The next prime is 72220849. The reversal of 72220846 is 64802227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72220849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622536 + ... + 622651.

It is an arithmetic number, because the mean of its divisors is an integer number (14008365).

Almost surely, 2^72220846 is an apocalyptic number.

72220846 is a deficient number, since it is larger than the sum of its proper divisors (39846074).

72220846 is a wasteful number, since it uses less digits than its factorization.

72220846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245218.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 72220846 is about 8498.2848857872. The cubic root of 72220846 is about 416.4416806347.

The spelling of 72220846 in words is "seventy-two million, two hundred twenty thousand, eight hundred forty-six".