629731474 has 16 divisors (see below), whose sum is σ = 987136128. Its totient is φ = 300997872.

The previous prime is 629731471. The next prime is 629731499. The reversal of 629731474 is 474137926.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 629731474.

It is not an unprimeable number, because it can be changed into a prime (629731471) 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, 73857 + ... + 81940.

It is an arithmetic number, because the mean of its divisors is an integer number (61696008).

Almost surely, 2^629731474 is an apocalyptic number.

629731474 is a deficient number, since it is larger than the sum of its proper divisors (357404654).

629731474 is a wasteful number, since it uses less digits than its factorization.

629731474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155889.

The product of its digits is 254016, while the sum is 43.

The square root of 629731474 is about 25094.4510599455. The cubic root of 629731474 is about 857.1400735121.

The spelling of 629731474 in words is "six hundred twenty-nine million, seven hundred thirty-one thousand, four hundred seventy-four".