79276540 has 48 divisors (see below), whose sum is σ = 192894912. Its totient is φ = 26804736.

The previous prime is 79276529. The next prime is 79276553. The reversal of 79276540 is 4567297.

It is a junction number, because it is equal to n+sod(n) for n = 79276493 and 79276502.

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, 6342 + ... + 14098.

It is an arithmetic number, because the mean of its divisors is an integer number (4018644).

Almost surely, 2^79276540 is an apocalyptic number.

79276540 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79276540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96447456).

79276540 is an abundant number, since it is smaller than the sum of its proper divisors (113618372).

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

79276540 is a wasteful number, since it uses less digits than its factorization.

79276540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7846 (or 7844 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 79276540 is about 8903.7374175118. The cubic root of 79276540 is about 429.5841301051.

The spelling of 79276540 in words is "seventy-nine million, two hundred seventy-six thousand, five hundred forty".