629838522 has 12 divisors (see below), whose sum is σ = 1364650170. Its totient is φ = 209946168.

The previous prime is 629838479. The next prime is 629838523. The reversal of 629838522 is 225838926.

It is a happy number.

629838522 is a `hidden beast` number, since 6 + 2 + 98 + 38 + 522 = 666.

It can be written as a sum of positive squares in only one way, i.e., 624950001 + 4888521 = 24999^2 + 2211^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (629838523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17495497 + ... + 17495532.

Almost surely, 2^629838522 is an apocalyptic number.

629838522 is an abundant number, since it is smaller than the sum of its proper divisors (734811648).

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

629838522 is a wasteful number, since it uses less digits than its factorization.

629838522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34991037 (or 34991034 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 629838522 is about 25096.5838711168. The cubic root of 629838522 is about 857.1886391499.

The spelling of 629838522 in words is "six hundred twenty-nine million, eight hundred thirty-eight thousand, five hundred twenty-two".