130444236 has 96 divisors (see below), whose sum is σ = 371286720. Its totient is φ = 39356928.

The previous prime is 130444229. The next prime is 130444267. The reversal of 130444236 is 632444031.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73536 + ... + 75288.

It is an arithmetic number, because the mean of its divisors is an integer number (3867570).

Almost surely, 2^130444236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130444236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185643360).

130444236 is an abundant number, since it is smaller than the sum of its proper divisors (240842484).

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

130444236 is a wasteful number, since it uses less digits than its factorization.

130444236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 130444236 is about 11421.2186740295. The cubic root of 130444236 is about 507.1560739341.

Adding to 130444236 its reverse (632444031), we get a palindrome (762888267).

The spelling of 130444236 in words is "one hundred thirty million, four hundred forty-four thousand, two hundred thirty-six".