630926460 has 72 divisors (see below), whose sum is σ = 1930808880. Its totient is φ = 166752768.

The previous prime is 630926459. The next prime is 630926467. The reversal of 630926460 is 64629036.

630926460 is a `hidden beast` number, since 6 + 3 + 0 + 9 + 2 + 646 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630926467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4831 + ... + 35849.

It is an arithmetic number, because the mean of its divisors is an integer number (26816790).

Almost surely, 2^630926460 is an apocalyptic number.

630926460 is a gapful number since it is divisible by the number (60) 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 630926460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (965404440).

630926460 is an abundant number, since it is smaller than the sum of its proper divisors (1299882420).

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

630926460 is a wasteful number, since it uses less digits than its factorization.

630926460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31147 (or 31142 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 630926460 is about 25118.2495409214. The cubic root of 630926460 is about 857.6819040240.

The spelling of 630926460 in words is "six hundred thirty million, nine hundred twenty-six thousand, four hundred sixty".