79442650 has 48 divisors (see below), whose sum is σ = 169614144. Its totient is φ = 27118080.

The previous prime is 79442647. The next prime is 79442653. The reversal of 79442650 is 5624497.

It is an interprime number because it is at equal distance from previous prime (79442647) and next prime (79442653).

It is a super-2 number, since 2×79442650² = 12622269278045000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79442653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123229 + ... + 123871.

It is an arithmetic number, because the mean of its divisors is an integer number (3533628).

Almost surely, 2^79442650 is an apocalyptic number.

79442650 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

79442650 is an abundant number, since it is smaller than the sum of its proper divisors (90171494).

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

79442650 is a wasteful number, since it uses less digits than its factorization.

79442650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 79442650 is about 8913.0606415529. The cubic root of 79442650 is about 429.8839600349.

The spelling of 79442650 in words is "seventy-nine million, four hundred forty-two thousand, six hundred fifty".