79018938 has 96 divisors (see below), whose sum is σ = 189775872. Its totient is φ = 23680800.

The previous prime is 79018937. The next prime is 79018943. The reversal of 79018938 is 83981097.

It is a junction number, because it is equal to n+sod(n) for n = 79018893 and 79018902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79018937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 603133 + ... + 603263.

It is an arithmetic number, because the mean of its divisors is an integer number (1976832).

Almost surely, 2^79018938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79018938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94887936).

79018938 is an abundant number, since it is smaller than the sum of its proper divisors (110756934).

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

79018938 is a wasteful number, since it uses less digits than its factorization.

79018938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 79018938 is about 8889.2596992101. The cubic root of 79018938 is about 429.1183268560.

The spelling of 79018938 in words is "seventy-nine million, eighteen thousand, nine hundred thirty-eight".