132403840 has 64 divisors (see below), whose sum is σ = 317921760. Its totient is φ = 52728832.

The previous prime is 132403819. The next prime is 132403861. The reversal of 132403840 is 48304231.

It is an interprime number because it is at equal distance from previous prime (132403819) and next prime (132403861).

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283287 + ... + 283753.

Almost surely, 2^132403840 is an apocalyptic number.

132403840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 132403840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158960880).

132403840 is an abundant number, since it is smaller than the sum of its proper divisors (185517920).

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

132403840 is an equidigital number, since it uses as much as digits as its factorization.

132403840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 917 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 132403840 is about 11506.6867516240. The cubic root of 132403840 is about 509.6830531016.

The spelling of 132403840 in words is "one hundred thirty-two million, four hundred three thousand, eight hundred forty".