630212280 has 32 divisors (see below), whose sum is σ = 1890637200. Its totient is φ = 168056576.

The previous prime is 630212269. The next prime is 630212327. The reversal of 630212280 is 82212036.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 630212280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2625765 + ... + 2626004.

Almost surely, 2^630212280 is an apocalyptic number.

630212280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

630212280 is an abundant number, since it is smaller than the sum of its proper divisors (1260424920).

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

630212280 is a wasteful number, since it uses less digits than its factorization.

630212280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5251783 (or 5251779 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 630212280 is about 25104.0291586829. The cubic root of 630212280 is about 857.3581628969.

The spelling of 630212280 in words is "six hundred thirty million, two hundred twelve thousand, two hundred eighty".