79094640 has 80 divisors (see below), whose sum is σ = 253126656. Its totient is φ = 20409600.

The previous prime is 79094623. The next prime is 79094657. The reversal of 79094640 is 4649097.

It is an interprime number because it is at equal distance from previous prime (79094623) and next prime (79094657).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2125 + ... + 12755.

Almost surely, 2^79094640 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 79094640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126563328).

79094640 is an abundant number, since it is smaller than the sum of its proper divisors (174032016).

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

79094640 is a wasteful number, since it uses less digits than its factorization.

79094640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10678 (or 10672 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 79094640 is about 8893.5167397380. The cubic root of 79094640 is about 429.2553182663.

The spelling of 79094640 in words is "seventy-nine million, ninety-four thousand, six hundred forty".