630552444 has 24 divisors (see below), whose sum is σ = 1481036928. Its totient is φ = 208791600.

The previous prime is 630552443. The next prime is 630552463. The reversal of 630552444 is 444255036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630552443) 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, 172182 + ... + 175805.

It is an arithmetic number, because the mean of its divisors is an integer number (61709872).

Almost surely, 2^630552444 is an apocalyptic number.

It is an amenable number.

630552444 is an abundant number, since it is smaller than the sum of its proper divisors (850484484).

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

630552444 is a wasteful number, since it uses less digits than its factorization.

630552444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348145 (or 348143 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

The square root of 630552444 is about 25110.8033324304. The cubic root of 630552444 is about 857.5123913131.

The spelling of 630552444 in words is "six hundred thirty million, five hundred fifty-two thousand, four hundred forty-four".