79425438 has 8 divisors (see below), whose sum is σ = 158850888. Its totient is φ = 26475144.

The previous prime is 79425433. The next prime is 79425449. The reversal of 79425438 is 83452497.

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

79425438 is an admirable number.

It is a super-3 number, since 3×79425438³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79425438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79425433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6618781 + ... + 6618792.

It is an arithmetic number, because the mean of its divisors is an integer number (19856361).

Almost surely, 2^79425438 is an apocalyptic number.

79425438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

79425438 is a wasteful number, since it uses less digits than its factorization.

79425438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13237578.

The product of its digits is 241920, while the sum is 42.

The square root of 79425438 is about 8912.0950398882. The cubic root of 79425438 is about 429.8529116532.

The spelling of 79425438 in words is "seventy-nine million, four hundred twenty-five thousand, four hundred thirty-eight".