45132420 has 24 divisors (see below), whose sum is σ = 126370944. Its totient is φ = 12035296.

The previous prime is 45132407. The next prime is 45132421. The reversal of 45132420 is 2423154.

It is not an unprimeable number, because it can be changed into a prime (45132421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376044 + ... + 376163.

It is an arithmetic number, because the mean of its divisors is an integer number (5265456).

Almost surely, 2^45132420 is an apocalyptic number.

It is an amenable number.

45132420 is an abundant number, since it is smaller than the sum of its proper divisors (81238524).

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

45132420 is a wasteful number, since it uses less digits than its factorization.

45132420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752219 (or 752217 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 45132420 is about 6718.0666861829. The cubic root of 45132420 is about 356.0378804955.

Adding to 45132420 its reverse (2423154), we get a palindrome (47555574).

The spelling of 45132420 in words is "forty-five million, one hundred thirty-two thousand, four hundred twenty".