130279320 has 128 divisors (see below), whose sum is σ = 440640000. Its totient is φ = 34231680.

The previous prime is 130279309. The next prime is 130279349. The reversal of 130279320 is 23972031.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75831 + ... + 77529.

It is an arithmetic number, because the mean of its divisors is an integer number (3442500).

Almost surely, 2^130279320 is an apocalyptic number.

130279320 is a gapful number since it is divisible by the number (10) 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 130279320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220320000).

130279320 is an abundant number, since it is smaller than the sum of its proper divisors (310360680).

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

130279320 is a wasteful number, since it uses less digits than its factorization.

130279320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 130279320 is about 11413.9966707547. The cubic root of 130279320 is about 506.9422573502.

The spelling of 130279320 in words is "one hundred thirty million, two hundred seventy-nine thousand, three hundred twenty".