630826254 has 96 divisors (see below), whose sum is σ = 1470763008. Its totient is φ = 195048000.

The previous prime is 630826253. The next prime is 630826271. The reversal of 630826254 is 452628036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630826253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1463419 + ... + 1463849.

It is an arithmetic number, because the mean of its divisors is an integer number (15320448).

Almost surely, 2^630826254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630826254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735381504).

630826254 is an abundant number, since it is smaller than the sum of its proper divisors (839936754).

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

630826254 is a wasteful number, since it uses less digits than its factorization.

630826254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 630826254 is about 25116.2547765386. The cubic root of 630826254 is about 857.6364949160.

The spelling of 630826254 in words is "six hundred thirty million, eight hundred twenty-six thousand, two hundred fifty-four".