45453220 has 24 divisors (see below), whose sum is σ = 95679864. Its totient is φ = 18137856.

The previous prime is 45453211. The next prime is 45453229. The reversal of 45453220 is 2235454.

It is an interprime number because it is at equal distance from previous prime (45453211) and next prime (45453229).

It can be written as a sum of positive squares in 4 ways, for example, as 14561856 + 30891364 = 3816^2 + 5558^2 .

It is not an unprimeable number, because it can be changed into a prime (45453229) 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, 6654 + ... + 11626.

It is an arithmetic number, because the mean of its divisors is an integer number (3986661).

Almost surely, 2^45453220 is an apocalyptic number.

It is an amenable number.

45453220 is an abundant number, since it is smaller than the sum of its proper divisors (50226644).

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

45453220 is a wasteful number, since it uses less digits than its factorization.

45453220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5439 (or 5437 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 45453220 is about 6741.9003255759. The cubic root of 45453220 is about 356.8794588160.

Adding to 45453220 its reverse (2235454), we get a palindrome (47688674).

The spelling of 45453220 in words is "forty-five million, four hundred fifty-three thousand, two hundred twenty".