132001440 has 48 divisors (see below), whose sum is σ = 415806048. Its totient is φ = 35200256.

The previous prime is 132001411. The next prime is 132001453. The reversal of 132001440 is 44100231.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137022 + ... + 137981.

It is an arithmetic number, because the mean of its divisors is an integer number (8662626).

Almost surely, 2^132001440 is an apocalyptic number.

132001440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132001440 is an abundant number, since it is smaller than the sum of its proper divisors (283804608).

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

132001440 is a wasteful number, since it uses less digits than its factorization.

132001440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275021 (or 275013 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 132001440 is about 11489.1879608613. The cubic root of 132001440 is about 509.1661884659.

Adding to 132001440 its reverse (44100231), we get a palindrome (176101671).

The spelling of 132001440 in words is "one hundred thirty-two million, one thousand, four hundred forty".