630198376 has 8 divisors (see below), whose sum is σ = 1181621970. Its totient is φ = 315099184.

The previous prime is 630198341. The next prime is 630198389. The reversal of 630198376 is 673891036.

It can be written as a sum of positive squares in only one way, i.e., 603881476 + 26316900 = 24574^2 + 5130^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×630198376² = 794299986226074752, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39387391 + ... + 39387406.

Almost surely, 2^630198376 is an apocalyptic number.

It is an amenable number.

630198376 is a deficient number, since it is larger than the sum of its proper divisors (551423594).

630198376 is a wasteful number, since it uses less digits than its factorization.

630198376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78774803 (or 78774799 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 630198376 is about 25103.7522294975. The cubic root of 630198376 is about 857.3518577222.

The spelling of 630198376 in words is "six hundred thirty million, one hundred ninety-eight thousand, three hundred seventy-six".