130283840 has 28 divisors (see below), whose sum is σ = 310239156. Its totient is φ = 52113408.

The previous prime is 130283833. The next prime is 130283929. The reversal of 130283840 is 48382031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42823936 + 87459904 = 6544^2 + 9352^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203249 + ... + 203888.

Almost surely, 2^130283840 is an apocalyptic number.

130283840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130283840 is an abundant number, since it is smaller than the sum of its proper divisors (179955316).

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

130283840 is an equidigital number, since it uses as much as digits as its factorization.

130283840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407154 (or 407144 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 130283840 is about 11414.1946715482. The cubic root of 130283840 is about 506.9481200164.

The spelling of 130283840 in words is "one hundred thirty million, two hundred eighty-three thousand, eight hundred forty".