630123634 has 24 divisors (see below), whose sum is σ = 1125078768. Its totient is φ = 263770920.

The previous prime is 630123601. The next prime is 630123647. The reversal of 630123634 is 436321036.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70552 + ... + 78979.

It is an arithmetic number, because the mean of its divisors is an integer number (46878282).

Almost surely, 2^630123634 is an apocalyptic number.

630123634 is a deficient number, since it is larger than the sum of its proper divisors (494955134).

630123634 is a wasteful number, since it uses less digits than its factorization.

630123634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149590 (or 149583 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 630123634 is about 25102.2635234355. The cubic root of 630123634 is about 857.3179621911.

The spelling of 630123634 in words is "six hundred thirty million, one hundred twenty-three thousand, six hundred thirty-four".