629331489 has 12 divisors (see below), whose sum is σ = 909275172. Its totient is φ = 419443200.

The previous prime is 629331413. The next prime is 629331503. The reversal of 629331489 is 984133926.

It is a happy number.

629331489 is a `hidden beast` number, since 629 + 3 + 3 + 14 + 8 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 408363264 + 220968225 = 20208^2 + 14865^2 .

It is not a de Polignac number, because 629331489 - 2¹² = 629327393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (629331289) 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, 40909 + ... + 54149.

It is an arithmetic number, because the mean of its divisors is an integer number (75772931).

Almost surely, 2^629331489 is an apocalyptic number.

It is an amenable number.

629331489 is a deficient number, since it is larger than the sum of its proper divisors (279943683).

629331489 is a wasteful number, since it uses less digits than its factorization.

629331489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18528 (or 18525 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 629331489 is about 25086.4802034881. The cubic root of 629331489 is about 856.9585592214.

The spelling of 629331489 in words is "six hundred twenty-nine million, three hundred thirty-one thousand, four hundred eighty-nine".