79419240 has 192 divisors, whose sum is σ = 288100800. Its totient is φ = 18855936.

The previous prime is 79419233. The next prime is 79419269. The reversal of 79419240 is 4291497.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 79419195 and 79419204.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115939 + ... + 116621.

It is an arithmetic number, because the mean of its divisors is an integer number (1500525).

Almost surely, 2^79419240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79419240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144050400).

79419240 is an abundant number, since it is smaller than the sum of its proper divisors (208681560).

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

79419240 is a wasteful number, since it uses less digits than its factorization.

79419240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 79419240 is about 8911.7473034192. The cubic root of 79419240 is about 429.8417301069.

The spelling of 79419240 in words is "seventy-nine million, four hundred nineteen thousand, two hundred forty".