45555328 has 64 divisors (see below), whose sum is σ = 111726720. Its totient is φ = 18017280.

The previous prime is 45555313. The next prime is 45555329. The reversal of 45555328 is 82355554.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (45555329) 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, 9693 + ... + 13603.

It is an arithmetic number, because the mean of its divisors is an integer number (1745730).

Almost surely, 2^45555328 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 45555328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55863360).

45555328 is an abundant number, since it is smaller than the sum of its proper divisors (66171392).

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

45555328 is a wasteful number, since it uses less digits than its factorization.

45555328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3945 (or 3933 counting only the distinct ones).

The product of its digits is 120000, while the sum is 37.

The square root of 45555328 is about 6749.4687198327. The cubic root of 45555328 is about 357.1464952315.

The spelling of 45555328 in words is "forty-five million, five hundred fifty-five thousand, three hundred twenty-eight".