630340254 has 48 divisors (see below), whose sum is σ = 1444708512. Its totient is φ = 198215424.

The previous prime is 630340237. The next prime is 630340303. The reversal of 630340254 is 452043036.

630340254 is a `hidden beast` number, since 630 + 3 + 4 + 0 + 25 + 4 = 666.

630340254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19794 + ... + 40650.

It is an arithmetic number, because the mean of its divisors is an integer number (30098094).

Almost surely, 2^630340254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630340254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (722354256).

630340254 is an abundant number, since it is smaller than the sum of its proper divisors (814368258).

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

630340254 is a wasteful number, since it uses less digits than its factorization.

630340254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20961 (or 20958 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 630340254 is about 25106.5779030118. The cubic root of 630340254 is about 857.4161920886.

The spelling of 630340254 in words is "six hundred thirty million, three hundred forty thousand, two hundred fifty-four".