630684548 has 24 divisors (see below), whose sum is σ = 1189953240. Its totient is φ = 290753280.

The previous prime is 630684503. The next prime is 630684559. The reversal of 630684548 is 845486036.

It can be written as a sum of positive squares in 4 ways, for example, as 69089344 + 561595204 = 8312^2 + 23698^2 .

It is a junction number, because it is equal to n+sod(n) for n = 630684499 and 630684508.

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, 42488 + ... + 55376.

It is an arithmetic number, because the mean of its divisors is an integer number (49581385).

Almost surely, 2^630684548 is an apocalyptic number.

It is an amenable number.

630684548 is a deficient number, since it is larger than the sum of its proper divisors (559268692).

630684548 is a wasteful number, since it uses less digits than its factorization.

630684548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13847 (or 13845 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The square root of 630684548 is about 25113.4336162939. The cubic root of 630684548 is about 857.5722715594.

The spelling of 630684548 in words is "six hundred thirty million, six hundred eighty-four thousand, five hundred forty-eight".