45342320 has 40 divisors (see below), whose sum is σ = 106426224. Its totient is φ = 17964032.

The previous prime is 45342313. The next prime is 45342329. The reversal of 45342320 is 2324354.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45342329) 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, 5912 + ... + 11208.

Almost surely, 2^45342320 is an apocalyptic number.

45342320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45342320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53213112).

45342320 is an abundant number, since it is smaller than the sum of its proper divisors (61083904).

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

45342320 is a wasteful number, since it uses less digits than its factorization.

45342320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5417 (or 5411 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 45342320 is about 6733.6706186151. The cubic root of 45342320 is about 356.5889758093.

Adding to 45342320 its reverse (2324354), we get a palindrome (47666674).

The spelling of 45342320 in words is "forty-five million, three hundred forty-two thousand, three hundred twenty".