630141444 has 30 divisors (see below), whose sum is σ = 1647315054. Its totient is φ = 210047040.

The previous prime is 630141443. The next prime is 630141451. The reversal of 630141444 is 444141036.

630141444 is a `hidden beast` number, since 630 + 14 + 14 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 626901444 + 3240000 = 25038^2 + 1800^2 .

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

It is not an unprimeable number, because it can be changed into a prime (630141443) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 972117 + ... + 972764.

Almost surely, 2^630141444 is an apocalyptic number.

It is an amenable number.

630141444 is an abundant number, since it is smaller than the sum of its proper divisors (1017173610).

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

630141444 is a wasteful number, since it uses less digits than its factorization.

630141444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944897 (or 1944886 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 630141444 is about 25102.6182698140. The cubic root of 630141444 is about 857.3260392775.

The spelling of 630141444 in words is "six hundred thirty million, one hundred forty-one thousand, four hundred forty-four".