630239454 has 112 divisors (see below), whose sum is σ = 1565578224. Its totient is φ = 188956800.

The previous prime is 630239447. The next prime is 630239459. The reversal of 630239454 is 454932036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630239459) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 776709 + ... + 777519.

It is an arithmetic number, because the mean of its divisors is an integer number (13978377).

Almost surely, 2^630239454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630239454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (782789112).

630239454 is an abundant number, since it is smaller than the sum of its proper divisors (935338770).

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

630239454 is a wasteful number, since it uses less digits than its factorization.

630239454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 630239454 is about 25104.5703807096. The cubic root of 630239454 is about 857.3704854728.

The spelling of 630239454 in words is "six hundred thirty million, two hundred thirty-nine thousand, four hundred fifty-four".