630890249 has 12 divisors (see below), whose sum is σ = 695396352. Its totient is φ = 571933560.

The previous prime is 630890233. The next prime is 630890251. The reversal of 630890249 is 942098036.

It is a happy number.

630890249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 630890249 - 2⁴ = 630890233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630890209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37304 + ... + 51510.

It is an arithmetic number, because the mean of its divisors is an integer number (57949696).

Almost surely, 2^630890249 is an apocalyptic number.

It is an amenable number.

630890249 is a deficient number, since it is larger than the sum of its proper divisors (64506103).

630890249 is a wasteful number, since it uses less digits than its factorization.

630890249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14596 (or 14585 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 630890249 is about 25117.5287199995. The cubic root of 630890249 is about 857.6654952899.

The spelling of 630890249 in words is "six hundred thirty million, eight hundred ninety thousand, two hundred forty-nine".