72196780 has 24 divisors (see below), whose sum is σ = 151773552. Its totient is φ = 28848192.

The previous prime is 72196771. The next prime is 72196801. The reversal of 72196780 is 8769127.

72196780 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

72196780 is strictly pandigital in base 9.

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, 33619 + ... + 35701.

It is an arithmetic number, because the mean of its divisors is an integer number (6323898).

Almost surely, 2^72196780 is an apocalyptic number.

It is an amenable number.

72196780 is an abundant number, since it is smaller than the sum of its proper divisors (79576772).

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

72196780 is a wasteful number, since it uses less digits than its factorization.

72196780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3825 (or 3823 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 72196780 is about 8496.8688350474. The cubic root of 72196780 is about 416.3954188352.

The spelling of 72196780 in words is "seventy-two million, one hundred ninety-six thousand, seven hundred eighty".