72455198 has 8 divisors (see below), whose sum is σ = 113408208. Its totient is φ = 34652464.

The previous prime is 72455179. The next prime is 72455209. The reversal of 72455198 is 89155427.

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

It is a congruent number.

It is an unprimeable number.

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, 787511 + ... + 787602.

It is an arithmetic number, because the mean of its divisors is an integer number (14176026).

Almost surely, 2^72455198 is an apocalyptic number.

72455198 is a deficient number, since it is larger than the sum of its proper divisors (40953010).

72455198 is a wasteful number, since it uses less digits than its factorization.

72455198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575138.

The product of its digits is 100800, while the sum is 41.

The square root of 72455198 is about 8512.0619123688. The cubic root of 72455198 is about 416.8916364485.

The spelling of 72455198 in words is "seventy-two million, four hundred fifty-five thousand, one hundred ninety-eight".