630843264 has 192 divisors, whose sum is σ = 1961949600. Its totient is φ = 193966080.

The previous prime is 630843253. The next prime is 630843271. The reversal of 630843264 is 462348036.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 767974 + ... + 768794.

Almost surely, 2^630843264 is an apocalyptic number.

630843264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630843264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (980974800).

630843264 is an abundant number, since it is smaller than the sum of its proper divisors (1331106336).

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

630843264 is a wasteful number, since it uses less digits than its factorization.

630843264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 630843264 is about 25116.5933995835. The cubic root of 630843264 is about 857.6442034652.

The spelling of 630843264 in words is "six hundred thirty million, eight hundred forty-three thousand, two hundred sixty-four".