630622098 has 30 divisors (see below), whose sum is σ = 1413777189. Its totient is φ = 210100824.

The previous prime is 630622093. The next prime is 630622099. The reversal of 630622098 is 890226036.

It can be written as a sum of positive squares in 2 ways, for example, as 574417089 + 56205009 = 23967^2 + 7497^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=17757.

It is not an unprimeable number, because it can be changed into a prime (630622093) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 318640 + ... + 320612.

Almost surely, 2^630622098 is an apocalyptic number.

630622098 is an abundant number, since it is smaller than the sum of its proper divisors (783155091).

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

630622098 is an frugal number, since it uses more digits than its factorization.

630622098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960 (or 1978 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 630622098 is about 25112.1902270590. The cubic root of 630622098 is about 857.5439651970.

The spelling of 630622098 in words is "six hundred thirty million, six hundred twenty-two thousand, ninety-eight".