79448130 has 48 divisors (see below), whose sum is σ = 207660024. Its totient is φ = 21073920.

The previous prime is 79448129. The next prime is 79448137. The reversal of 79448130 is 3184497.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 79441569 + 6561 = 8913^2 + 81^2 .

It is not an unprimeable number, because it can be changed into a prime (79448137) 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, 15490 + ... + 19970.

Almost surely, 2^79448130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79448130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103830012).

79448130 is an abundant number, since it is smaller than the sum of its proper divisors (128211894).

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

79448130 is a wasteful number, since it uses less digits than its factorization.

79448130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4691 (or 4688 counting only the distinct ones).

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

The square root of 79448130 is about 8913.3680502939. The cubic root of 79448130 is about 429.8938443558.

The spelling of 79448130 in words is "seventy-nine million, four hundred forty-eight thousand, one hundred thirty".