630456 has 32 divisors (see below), whose sum is σ = 1597200. Its totient is φ = 207360.

The previous prime is 630451. The next prime is 630467. The reversal of 630456 is 654036.

630456 = T₃₉₃ + T₃₉₄ + ... + T₄₀₀.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2496 + ... + 2736.

2⁶³⁰⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

630456 is an abundant number, since it is smaller than the sum of its proper divisors (966744).

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

630456 is a wasteful number, since it uses less digits than its factorization.

630456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 630456 is about 794.0125943586. The cubic root of 630456 is about 85.7468669789.

The spelling of 630456 in words is "six hundred thirty thousand, four hundred fifty-six".