45444132 has 24 divisors (see below), whose sum is σ = 117818400. Its totient is φ = 15148008.

The previous prime is 45444107. The next prime is 45444137. The reversal of 45444132 is 23144454.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 45444096 and 45444105.

It is not an unprimeable number, because it can be changed into a prime (45444137) 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, 210282 + ... + 210497.

It is an arithmetic number, because the mean of its divisors is an integer number (4909100).

Almost surely, 2^45444132 is an apocalyptic number.

It is an amenable number.

45444132 is an abundant number, since it is smaller than the sum of its proper divisors (72374268).

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

45444132 is a wasteful number, since it uses less digits than its factorization.

45444132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420792 (or 420784 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 45444132 is about 6741.2262979372. The cubic root of 45444132 is about 356.8556721866.

Adding to 45444132 its reverse (23144454), we get a palindrome (68588586).

The spelling of 45444132 in words is "forty-five million, four hundred forty-four thousand, one hundred thirty-two".