132420440 has 32 divisors (see below), whose sum is σ = 298676160. Its totient is φ = 52838400.

The previous prime is 132420439. The next prime is 132420517. The reversal of 132420440 is 44024231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 13400 + ... + 21080.

It is an arithmetic number, because the mean of its divisors is an integer number (9333630).

Almost surely, 2^132420440 is an apocalyptic number.

132420440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132420440 is an abundant number, since it is smaller than the sum of its proper divisors (166255720).

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

132420440 is a wasteful number, since it uses less digits than its factorization.

132420440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8123 (or 8119 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 132420440 is about 11507.4080487310. The cubic root of 132420440 is about 509.7043525471.

Adding to 132420440 its reverse (44024231), we get a palindrome (176444671).

The spelling of 132420440 in words is "one hundred thirty-two million, four hundred twenty thousand, four hundred forty".