629917134 has 64 divisors (see below), whose sum is σ = 1574318592. Its totient is φ = 163238400.

The previous prime is 629917109. The next prime is 629917139. The reversal of 629917134 is 431719926.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629917139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239394 + ... + 242010.

It is an arithmetic number, because the mean of its divisors is an integer number (24598728).

Almost surely, 2^629917134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 629917134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (787159296).

629917134 is an abundant number, since it is smaller than the sum of its proper divisors (944401458).

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

629917134 is a wasteful number, since it uses less digits than its factorization.

629917134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161.

The product of its digits is 81648, while the sum is 42.

The square root of 629917134 is about 25098.1500115048. The cubic root of 629917134 is about 857.2243004120.

It can be divided in two parts, 62991 and 7134, that added together give a triangular number (70125 = T₃₇₄).

The spelling of 629917134 in words is "six hundred twenty-nine million, nine hundred seventeen thousand, one hundred thirty-four".