629449920 has 448 divisors, whose sum is σ = 2501798400. Its totient is φ = 147640320.

The previous prime is 629449913. The next prime is 629449943. The reversal of 629449920 is 29944926.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3516391 + ... + 3516569.

Almost surely, 2^629449920 is an apocalyptic number.

629449920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 629449920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250899200).

629449920 is an abundant number, since it is smaller than the sum of its proper divisors (1872348480).

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

629449920 is a wasteful number, since it uses less digits than its factorization.

629449920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 237 counting only the distinct ones).

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

The square root of 629449920 is about 25088.8405471437. The cubic root of 629449920 is about 857.0123115471.

The spelling of 629449920 in words is "six hundred twenty-nine million, four hundred forty-nine thousand, nine hundred twenty".