629936380 has 12 divisors (see below), whose sum is σ = 1322866440. Its totient is φ = 251974544.

The previous prime is 629936371. The next prime is 629936449. The reversal of 629936380 is 83639926.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 629936380.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15748390 + ... + 15748429.

It is an arithmetic number, because the mean of its divisors is an integer number (110238870).

Almost surely, 2^629936380 is an apocalyptic number.

It is an amenable number.

629936380 is an abundant number, since it is smaller than the sum of its proper divisors (692930060).

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

629936380 is a wasteful number, since it uses less digits than its factorization.

629936380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31496828 (or 31496826 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 629936380 is about 25098.5334232899. The cubic root of 629936380 is about 857.2330306455.

The spelling of 629936380 in words is "six hundred twenty-nine million, nine hundred thirty-six thousand, three hundred eighty".