630291423 has 16 divisors (see below), whose sum is σ = 885777120. Its totient is φ = 398047104.

The previous prime is 630291407. The next prime is 630291443. The reversal of 630291423 is 324192036.

It is not a de Polignac number, because 630291423 - 2⁴ = 630291407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630291443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63736 + ... + 72957.

It is an arithmetic number, because the mean of its divisors is an integer number (55361070).

Almost surely, 2^630291423 is an apocalyptic number.

630291423 is a deficient number, since it is larger than the sum of its proper divisors (255485697).

630291423 is a wasteful number, since it uses less digits than its factorization.

630291423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136778.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 630291423 is about 25105.6054099478. The cubic root of 630291423 is about 857.3940508345.

The spelling of 630291423 in words is "six hundred thirty million, two hundred ninety-one thousand, four hundred twenty-three".