45680220 has 96 divisors (see below), whose sum is σ = 147067200. Its totient is φ = 11757312.

The previous prime is 45680213. The next prime is 45680221. The reversal of 45680220 is 2208654.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45680221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14202 + ... + 17118.

It is an arithmetic number, because the mean of its divisors is an integer number (1531950).

Almost surely, 2^45680220 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 45680220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73533600).

45680220 is an abundant number, since it is smaller than the sum of its proper divisors (101386980).

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

45680220 is a wasteful number, since it uses less digits than its factorization.

45680220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964 (or 2956 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 45680220 is about 6758.7143747905. The cubic root of 45680220 is about 357.4725752024.

Adding to 45680220 its reverse (2208654), we get a palindrome (47888874).

The spelling of 45680220 in words is "forty-five million, six hundred eighty thousand, two hundred twenty".