72400196 has 12 divisors (see below), whose sum is σ = 138218640. Its totient is φ = 32909160.

The previous prime is 72400193. The next prime is 72400213. The reversal of 72400196 is 69100427.

It is not an unprimeable number, because it can be changed into a prime (72400193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822686 + ... + 822773.

It is an arithmetic number, because the mean of its divisors is an integer number (11518220).

Almost surely, 2^72400196 is an apocalyptic number.

It is an amenable number.

72400196 is a deficient number, since it is larger than the sum of its proper divisors (65818444).

72400196 is a wasteful number, since it uses less digits than its factorization.

72400196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645474 (or 1645472 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 72400196 is about 8508.8304719274. The cubic root of 72400196 is about 416.7861198488.

The spelling of 72400196 in words is "seventy-two million, four hundred thousand, one hundred ninety-six".