79286040 has 112 divisors (see below), whose sum is σ = 267566400. Its totient is φ = 21135168.

The previous prime is 79286027. The next prime is 79286057. The reversal of 79286040 is 4068297.

It is a super-2 number, since 2×79286040² = 12572552277763200, which contains 22 as substring.

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 = 79285986 and 79286004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 27801 + ... + 30519.

Almost surely, 2^79286040 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 79286040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133783200).

79286040 is an abundant number, since it is smaller than the sum of its proper divisors (188280360).

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

79286040 is a wasteful number, since it uses less digits than its factorization.

79286040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748 (or 2729 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 79286040 is about 8904.2708853673. The cubic root of 79286040 is about 429.6012889696.

The spelling of 79286040 in words is "seventy-nine million, two hundred eighty-six thousand, forty".