79133340 has 192 divisors, whose sum is σ = 272305152. Its totient is φ = 16896000.

The previous prime is 79133339. The next prime is 79133389. The reversal of 79133340 is 4333197.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 79133298 and 79133307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 197140 + ... + 197540.

It is an arithmetic number, because the mean of its divisors is an integer number (1418256).

Almost surely, 2^79133340 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 79133340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136152576).

79133340 is an abundant number, since it is smaller than the sum of its proper divisors (193171812).

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

79133340 is a wasteful number, since it uses less digits than its factorization.

79133340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 79133340 is about 8895.6922158987. The cubic root of 79133340 is about 429.3253165712.

The spelling of 79133340 in words is "seventy-nine million, one hundred thirty-three thousand, three hundred forty".