132263440 has 20 divisors (see below), whose sum is σ = 307512684. Its totient is φ = 52905344.

The previous prime is 132263431. The next prime is 132263441. The reversal of 132263440 is 44362231.

It can be written as a sum of positive squares in 2 ways, for example, as 59536656 + 72726784 = 7716^2 + 8528^2 .

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

It is not an unprimeable number, because it can be changed into a prime (132263441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 826567 + ... + 826726.

Almost surely, 2^132263440 is an apocalyptic number.

132263440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132263440 is an abundant number, since it is smaller than the sum of its proper divisors (175249244).

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

132263440 is a wasteful number, since it uses less digits than its factorization.

132263440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653306 (or 1653300 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 132263440 is about 11500.5843329807. The cubic root of 132263440 is about 509.5028347402.

The spelling of 132263440 in words is "one hundred thirty-two million, two hundred sixty-three thousand, four hundred forty".