630454 has 8 divisors (see below), whose sum is σ = 1031688. Its totient is φ = 286560.

The previous prime is 630451. The next prime is 630467. The reversal of 630454 is 454036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×630454² = 794944492232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 28657 = 630454 / (6 + 3 + 0 + 4 + 5 + 4).

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14307 + ... + 14350.

It is an arithmetic number, because the mean of its divisors is an integer number (128961).

2⁶³⁰⁴⁵⁴ is an apocalyptic number.

630454 is a deficient number, since it is larger than the sum of its proper divisors (401234).

630454 is a wasteful number, since it uses less digits than its factorization.

630454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28670.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 630454 is about 794.0113349317. The cubic root of 630454 is about 85.7467763070.

The spelling of 630454 in words is "six hundred thirty thousand, four hundred fifty-four".