634020 has 24 divisors (see below), whose sum is σ = 1775424. Its totient is φ = 169056.

The previous prime is 634013. The next prime is 634031. The reversal of 634020 is 20436.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5224 + ... + 5343.

It is an arithmetic number, because the mean of its divisors is an integer number (73976).

2⁶³⁴⁰²⁰ is an apocalyptic number.

634020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

634020 is an abundant number, since it is smaller than the sum of its proper divisors (1141404).

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

634020 is a wasteful number, since it uses less digits than its factorization.

634020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10579 (or 10577 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 634020 is about 796.2537284057. The cubic root of 634020 is about 85.9081406045.

Adding to 634020 its reverse (20436), we get a palindrome (654456).

The spelling of 634020 in words is "six hundred thirty-four thousand, twenty".