635432 has 24 divisors (see below), whose sum is σ = 1386810. Its totient is φ = 272160.

The previous prime is 635431. The next prime is 635441. The reversal of 635432 is 234536.

It can be written as a sum of positive squares in only one way, i.e., 470596 + 164836 = 686^2 + 406^2 .

It is a plaindrome in base 12.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 635398 and 635407.

It is not an unprimeable number, because it can be changed into a prime (635431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 419 + ... + 1202.

2⁶³⁵⁴³² is an apocalyptic number.

It is an amenable number.

635432 is an abundant number, since it is smaller than the sum of its proper divisors (751378).

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

635432 is a wasteful number, since it uses less digits than its factorization.

635432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641 (or 1630 counting only the distinct ones).

The product of its digits is 2160, while the sum is 23.

The square root of 635432 is about 797.1398873473. The cubic root of 635432 is about 85.9718674883.

Adding to 635432 its reverse (234536), we get a palindrome (869968).

The spelling of 635432 in words is "six hundred thirty-five thousand, four hundred thirty-two".