629905620 has 48 divisors (see below), whose sum is σ = 1769459328. Its totient is φ = 167429760.

The previous prime is 629905579. The next prime is 629905621. The reversal of 629905620 is 26509926.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629905621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1782 + ... + 35538.

It is an arithmetic number, because the mean of its divisors is an integer number (36863736).

Almost surely, 2^629905620 is an apocalyptic number.

629905620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

629905620 is an abundant number, since it is smaller than the sum of its proper divisors (1139553708).

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

629905620 is a wasteful number, since it uses less digits than its factorization.

629905620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34080 (or 34078 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 629905620 is about 25097.9206310005. The cubic root of 629905620 is about 857.2190774284.

The spelling of 629905620 in words is "six hundred twenty-nine million, nine hundred five thousand, six hundred twenty".