630286840 has 16 divisors (see below), whose sum is σ = 1418145480. Its totient is φ = 252114720.

The previous prime is 630286807. The next prime is 630286843. The reversal of 630286840 is 48682036.

630286840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 630286840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630286843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7878546 + ... + 7878625.

Almost surely, 2^630286840 is an apocalyptic number.

It is an amenable number.

630286840 is an abundant number, since it is smaller than the sum of its proper divisors (787858640).

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

630286840 is a wasteful number, since it uses less digits than its factorization.

630286840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15757182 (or 15757178 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 630286840 is about 25105.5141353448. The cubic root of 630286840 is about 857.3919727236.

It can be divided in two parts, 630286 and 840, that added together give a triangular number (631126 = T₁₁₂₃).

The spelling of 630286840 in words is "six hundred thirty million, two hundred eighty-six thousand, eight hundred forty".