130403644 has 24 divisors (see below), whose sum is σ = 261107168. Its totient is φ = 55823040.

The previous prime is 130403627. The next prime is 130403653. The reversal of 130403644 is 446304031.

It is a happy number.

It is a super-2 number, since 2×130403644² = 34010220736957472, which contains 22 as substring.

It is a congruent number.

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, 28474 + ... + 32734.

Almost surely, 2^130403644 is an apocalyptic number.

130403644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

130403644 is an abundant number, since it is smaller than the sum of its proper divisors (130703524).

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

130403644 is a wasteful number, since it uses less digits than its factorization.

130403644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5365 (or 5363 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 130403644 is about 11419.4414924724. The cubic root of 130403644 is about 507.1034623974.

Adding to 130403644 its reverse (446304031), we get a palindrome (576707675).

The spelling of 130403644 in words is "one hundred thirty million, four hundred three thousand, six hundred forty-four".