629040 has 40 divisors (see below), whose sum is σ = 1950768. Its totient is φ = 167680.

The previous prime is 629029. The next prime is 629059. The reversal of 629040 is 40926.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 628998 and 629016.

It is an unprimeable number.

629040 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071 + ... + 1550.

2⁶²⁹⁰⁴⁰ is an apocalyptic number.

629040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

629040 is an abundant number, since it is smaller than the sum of its proper divisors (1321728).

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

629040 is a wasteful number, since it uses less digits than its factorization.

629040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2637 (or 2631 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 629040 is about 793.1204196085. The cubic root of 629040 is about 85.6826232261.

Adding to 629040 its reverse (40926), we get a palindrome (669966).

The spelling of 629040 in words is "six hundred twenty-nine thousand, forty".