72195790 has 32 divisors (see below), whose sum is σ = 135794880. Its totient is φ = 27600384.

The previous prime is 72195743. The next prime is 72195791. The reversal of 72195790 is 9759127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72195791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28662 + ... + 31078.

It is an arithmetic number, because the mean of its divisors is an integer number (4243590).

Almost surely, 2^72195790 is an apocalyptic number.

72195790 is a deficient number, since it is larger than the sum of its proper divisors (63599090).

72195790 is a wasteful number, since it uses less digits than its factorization.

72195790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556.

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 72195790 is about 8496.8105780934. The cubic root of 72195790 is about 416.3935155492.

The spelling of 72195790 in words is "seventy-two million, one hundred ninety-five thousand, seven hundred ninety".