630287240 has 64 divisors (see below), whose sum is σ = 1638092160. Its totient is φ = 215710720.

The previous prime is 630287227. The next prime is 630287261. The reversal of 630287240 is 42782036.

It is a junction number, because it is equal to n+sod(n) for n = 630287197 and 630287206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34652 + ... + 49611.

It is an arithmetic number, because the mean of its divisors is an integer number (25595190).

Almost surely, 2^630287240 is an apocalyptic number.

It is an amenable number.

630287240 is an abundant number, since it is smaller than the sum of its proper divisors (1007804920).

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

630287240 is a wasteful number, since it uses less digits than its factorization.

630287240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84302 (or 84298 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 630287240 is about 25105.5221017210. The cubic root of 630287240 is about 857.3921540996.

The spelling of 630287240 in words is "six hundred thirty million, two hundred eighty-seven thousand, two hundred forty".