130333440 has 72 divisors (see below), whose sum is σ = 416264688. Its totient is φ = 34754560.

The previous prime is 130333439. The next prime is 130333451. The reversal of 130333440 is 44333031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13131 + ... + 20810.

It is an arithmetic number, because the mean of its divisors is an integer number (5781454).

Almost surely, 2^130333440 is an apocalyptic number.

130333440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130333440 is an abundant number, since it is smaller than the sum of its proper divisors (285931248).

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

130333440 is an equidigital number, since it uses as much as digits as its factorization.

130333440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33965 (or 33951 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 130333440 is about 11416.3671980188. The cubic root of 130333440 is about 507.0124447925.

Adding to 130333440 its reverse (44333031), we get a palindrome (174666471).

It can be divided in two parts, 1303 and 33440, that added together give a palindrome (34743).

The spelling of 130333440 in words is "one hundred thirty million, three hundred thirty-three thousand, four hundred forty".