130440552 has 32 divisors (see below), whose sum is σ = 355747680. Its totient is φ = 39527360.

The previous prime is 130440551. The next prime is 130440581. The reversal of 130440552 is 255044031.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (130440551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246783 + ... + 247310.

It is an arithmetic number, because the mean of its divisors is an integer number (11117115).

Almost surely, 2^130440552 is an apocalyptic number.

130440552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130440552 is an abundant number, since it is smaller than the sum of its proper divisors (225307128).

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

130440552 is a wasteful number, since it uses less digits than its factorization.

130440552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494113 (or 494109 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 130440552 is about 11421.0573941295. The cubic root of 130440552 is about 507.1512995298.

Adding to 130440552 its reverse (255044031), we get a palindrome (385484583).

The spelling of 130440552 in words is "one hundred thirty million, four hundred forty thousand, five hundred fifty-two".