630276894 has 96 divisors (see below), whose sum is σ = 1535133600. Its totient is φ = 185552640.

The previous prime is 630276859. The next prime is 630276919. The reversal of 630276894 is 498672036.

630276894 is a `hidden beast` number, since 630 + 2 + 7 + 6 + 8 + 9 + 4 = 666.

It is a super-2 number, since 2×630276894² = 794497926220574472, which contains 22 as substring.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 888612 + ... + 889320.

It is an arithmetic number, because the mean of its divisors is an integer number (15990975).

Almost surely, 2^630276894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630276894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767566800).

630276894 is an abundant number, since it is smaller than the sum of its proper divisors (904856706).

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

630276894 is a wasteful number, since it uses less digits than its factorization.

630276894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 630276894 is about 25105.3160505898. The cubic root of 630276894 is about 857.3874627847.

The spelling of 630276894 in words is "six hundred thirty million, two hundred seventy-six thousand, eight hundred ninety-four".