132659440 has 20 divisors (see below), whose sum is σ = 308433384. Its totient is φ = 53063744.

The previous prime is 132659411. The next prime is 132659459. The reversal of 132659440 is 44956231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×132659440² = 35197054042227200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 132659396 and 132659405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829042 + ... + 829201.

Almost surely, 2^132659440 is an apocalyptic number.

132659440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132659440 is an abundant number, since it is smaller than the sum of its proper divisors (175773944).

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

132659440 is a wasteful number, since it uses less digits than its factorization.

132659440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658256 (or 1658250 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 132659440 is about 11517.7879820736. The cubic root of 132659440 is about 510.0108161233.

The spelling of 132659440 in words is "one hundred thirty-two million, six hundred fifty-nine thousand, four hundred forty".