629990620 has 24 divisors (see below), whose sum is σ = 1511977824. Its totient is φ = 215996736.

The previous prime is 629990611. The next prime is 629990623. The reversal of 629990620 is 26099926.

629990620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629990623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2249827 + ... + 2250106.

It is an arithmetic number, because the mean of its divisors is an integer number (62999076).

Almost surely, 2^629990620 is an apocalyptic number.

It is an amenable number.

629990620 is an abundant number, since it is smaller than the sum of its proper divisors (881987204).

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

629990620 is a wasteful number, since it uses less digits than its factorization.

629990620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4499949 (or 4499947 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 629990620 is about 25099.6139412542. The cubic root of 629990620 is about 857.2576336512.

It can be divided in two parts, 6299906 and 20, that added together give a palindrome (6299926).

The spelling of 629990620 in words is "six hundred twenty-nine million, nine hundred ninety thousand, six hundred twenty".