630440124 has 48 divisors (see below), whose sum is σ = 1499799840. Its totient is φ = 206058240.

The previous prime is 630440123. The next prime is 630440137. The reversal of 630440124 is 421044036.

It is a junction number, because it is equal to n+sod(n) for n = 630440094 and 630440103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630440123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271882 + ... + 274190.

It is an arithmetic number, because the mean of its divisors is an integer number (31245830).

Almost surely, 2^630440124 is an apocalyptic number.

It is an amenable number.

630440124 is an abundant number, since it is smaller than the sum of its proper divisors (869359716).

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

630440124 is a wasteful number, since it uses less digits than its factorization.

630440124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750 (or 2748 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 630440124 is about 25108.5667452366. The cubic root of 630440124 is about 857.4614722013.

The spelling of 630440124 in words is "six hundred thirty million, four hundred forty thousand, one hundred twenty-four".