79363440 has 240 divisors, whose sum is σ = 293835360. Its totient is φ = 19077120.

The previous prime is 79363393. The next prime is 79363447. The reversal of 79363440 is 4436397.

It is a tau number, because it is divible by the number of its divisors (240).

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 = 79363395 and 79363404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79363447) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 570891 + ... + 571029.

It is an arithmetic number, because the mean of its divisors is an integer number (1224314).

Almost surely, 2^79363440 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 79363440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146917680).

79363440 is an abundant number, since it is smaller than the sum of its proper divisors (214471920).

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

79363440 is a wasteful number, since it uses less digits than its factorization.

79363440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 79363440 is about 8908.6160541355. The cubic root of 79363440 is about 429.7410375121.

The spelling of 79363440 in words is "seventy-nine million, three hundred sixty-three thousand, four hundred forty".