635480 has 16 divisors (see below), whose sum is σ = 1429920. Its totient is φ = 254176.

The previous prime is 635471. The next prime is 635483. The reversal of 635480 is 84536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635483) by changing a digit.

635480 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 3 ways as a sum of consecutive naturals, for example, 7904 + ... + 7983.

It is an arithmetic number, because the mean of its divisors is an integer number (89370).

2⁶³⁵⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

635480 is an abundant number, since it is smaller than the sum of its proper divisors (794440).

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

635480 is a wasteful number, since it uses less digits than its factorization.

635480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15898 (or 15894 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 635480 is about 797.1699944178. The cubic root of 635480 is about 85.9740321814.

The spelling of 635480 in words is "six hundred thirty-five thousand, four hundred eighty".