79242198 has 64 divisors (see below), whose sum is σ = 192000000. Its totient is φ = 21298464.

The previous prime is 79242187. The next prime is 79242211. The reversal of 79242198 is 89124297.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158553 + ... + 159051.

It is an arithmetic number, because the mean of its divisors is an integer number (3000000).

Almost surely, 2^79242198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79242198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96000000).

79242198 is an abundant number, since it is smaller than the sum of its proper divisors (112757802).

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

79242198 is a wasteful number, since it uses less digits than its factorization.

79242198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729.

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

The square root of 79242198 is about 8901.8086926197. The cubic root of 79242198 is about 429.5220902760.

The spelling of 79242198 in words is "seventy-nine million, two hundred forty-two thousand, one hundred ninety-eight".