630169620 has 24 divisors (see below), whose sum is σ = 1764475104. Its totient is φ = 168045216.

The previous prime is 630169597. The next prime is 630169621. The reversal of 630169620 is 26961036.

It is a happy number.

It is a super-2 number, since 2×630169620² = 794227499941888800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630169621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5251354 + ... + 5251473.

It is an arithmetic number, because the mean of its divisors is an integer number (73519796).

Almost surely, 2^630169620 is an apocalyptic number.

630169620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

630169620 is an abundant number, since it is smaller than the sum of its proper divisors (1134305484).

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

630169620 is a wasteful number, since it uses less digits than its factorization.

630169620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10502839 (or 10502837 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 630169620 is about 25103.1794798986. The cubic root of 630169620 is about 857.3388171803.

The spelling of 630169620 in words is "six hundred thirty million, one hundred sixty-nine thousand, six hundred twenty".