690132 has 36 divisors (see below), whose sum is σ = 1719200. Its totient is φ = 215424.

The previous prime is 690127. The next prime is 690139. The reversal of 690132 is 231096.

690132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 690099 and 690108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690139) by changing a digit.

690132 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 11 ways as a sum of consecutive naturals, for example, 3369 + ... + 3567.

2⁶⁹⁰¹³² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859600).

690132 is an abundant number, since it is smaller than the sum of its proper divisors (1029068).

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

690132 is a wasteful number, since it uses less digits than its factorization.

690132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 690132 is about 830.7418371552. The cubic root of 690132 is about 88.3711937700.

The spelling of 690132 in words is "six hundred ninety thousand, one hundred thirty-two".