72193996 has 48 divisors (see below), whose sum is σ = 153664000. Its totient is φ = 28988928.

The previous prime is 72193973. The next prime is 72194027. The reversal of 72193996 is 69939127.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50905 + ... + 52303.

Almost surely, 2^72193996 is an apocalyptic number.

72193996 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72193996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76832000).

72193996 is an abundant number, since it is smaller than the sum of its proper divisors (81470004).

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

72193996 is a wasteful number, since it uses less digits than its factorization.

72193996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 1524 counting only the distinct ones).

The product of its digits is 183708, while the sum is 46.

The square root of 72193996 is about 8496.7050084136. The cubic root of 72193996 is about 416.3900665201.

The spelling of 72193996 in words is "seventy-two million, one hundred ninety-three thousand, nine hundred ninety-six".