630020146 has 12 divisors (see below), whose sum is σ = 1099321038. Its totient is φ = 270008592.

The previous prime is 630020093. The next prime is 630020177. The reversal of 630020146 is 641020036.

It can be written as a sum of positive squares in only one way, i.e., 629759025 + 261121 = 25095^2 + 511^2 .

It is a super-2 number, since 2×630020146² = 793850768731722632, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3214291 + ... + 3214486.

Almost surely, 2^630020146 is an apocalyptic number.

630020146 is a deficient number, since it is larger than the sum of its proper divisors (469300892).

630020146 is a wasteful number, since it uses less digits than its factorization.

630020146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6428793 (or 6428786 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 630020146 is about 25100.2021107401. The cubic root of 630020146 is about 857.2710259107.

The spelling of 630020146 in words is "six hundred thirty million, twenty thousand, one hundred forty-six".