72942198 has 32 divisors (see below), whose sum is σ = 170795520. Its totient is φ = 20331840.

The previous prime is 72942193. The next prime is 72942203. The reversal of 72942198 is 89124927.

It is an interprime number because it is at equal distance from previous prime (72942193) and next prime (72942203).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72942193) 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 15 ways as a sum of consecutive naturals, for example, 19458 + ... + 22901.

It is an arithmetic number, because the mean of its divisors is an integer number (5337360).

Almost surely, 2^72942198 is an apocalyptic number.

72942198 is an abundant number, since it is smaller than the sum of its proper divisors (97853322).

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

72942198 is a wasteful number, since it uses less digits than its factorization.

72942198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42412.

The product of its digits is 72576, while the sum is 42.

The square root of 72942198 is about 8540.6204692633. The cubic root of 72942198 is about 417.8235826735.

The spelling of 72942198 in words is "seventy-two million, nine hundred forty-two thousand, one hundred ninety-eight".