130019440 has 40 divisors (see below), whose sum is σ = 302994000. Its totient is φ = 51887616.

The previous prime is 130019429. The next prime is 130019447. The reversal of 130019440 is 44910031.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130019447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38292 + ... + 41548.

It is an arithmetic number, because the mean of its divisors is an integer number (7574850).

Almost surely, 2^130019440 is an apocalyptic number.

130019440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130019440 is an abundant number, since it is smaller than the sum of its proper divisors (172974560).

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

130019440 is a wasteful number, since it uses less digits than its factorization.

130019440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3769 (or 3763 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 130019440 is about 11402.6067195181. The cubic root of 130019440 is about 506.6049517013.

Adding to 130019440 its reverse (44910031), we get a palindrome (174929471).

It can be divided in two parts, 1 and 30019440, that added together give a square (30019441 = 5479²).

The spelling of 130019440 in words is "one hundred thirty million, nineteen thousand, four hundred forty".