45306432 has 112 divisors (see below), whose sum is σ = 134843520. Its totient is φ = 14916096.

The previous prime is 45306419. The next prime is 45306433. The reversal of 45306432 is 23460354.

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 = 45306396 and 45306405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45306433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271213 + ... + 271379.

It is an arithmetic number, because the mean of its divisors is an integer number (1203960).

Almost surely, 2^45306432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45306432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67421760).

45306432 is an abundant number, since it is smaller than the sum of its proper divisors (89537088).

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

45306432 is a wasteful number, since it uses less digits than its factorization.

45306432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 45306432 is about 6731.0052741028. The cubic root of 45306432 is about 356.4948720893.

Adding to 45306432 its reverse (23460354), we get a palindrome (68766786).

The spelling of 45306432 in words is "forty-five million, three hundred six thousand, four hundred thirty-two".