944781130 has 16 divisors (see below), whose sum is σ = 1701353160. Its totient is φ = 377746432.

The previous prime is 944781113. The next prime is 944781133. The reversal of 944781130 is 31187449.

It can be written as a sum of positive squares in 4 ways, for example, as 889769241 + 55011889 = 29829^2 + 7417^2 .

It is a super-2 number, since 2×944781130² = 1785222767208153800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 944781130.

It is not an unprimeable number, because it can be changed into a prime (944781133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4626 + ... + 43714.

Almost surely, 2^944781130 is an apocalyptic number.

944781130 is a deficient number, since it is larger than the sum of its proper divisors (756572030).

944781130 is a wasteful number, since it uses less digits than its factorization.

944781130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41513.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 944781130 is about 30737.2921709119. The cubic root of 944781130 is about 981.2441265420.

The spelling of 944781130 in words is "nine hundred forty-four million, seven hundred eighty-one thousand, one hundred thirty".