45130220 has 48 divisors (see below), whose sum is σ = 98158368. Its totient is φ = 17418240.

The previous prime is 45130219. The next prime is 45130229. The reversal of 45130220 is 2203154.

It is not an unprimeable number, because it can be changed into a prime (45130229) 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, 83150 + ... + 83690.

It is an arithmetic number, because the mean of its divisors is an integer number (2044966).

Almost surely, 2^45130220 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 45130220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49079184).

45130220 is an abundant number, since it is smaller than the sum of its proper divisors (53028148).

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

45130220 is a wasteful number, since it uses less digits than its factorization.

45130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 45130220 is about 6717.9029466047. The cubic root of 45130220 is about 356.0320953263.

Adding to 45130220 its reverse (2203154), we get a palindrome (47333374).

The spelling of 45130220 in words is "forty-five million, one hundred thirty thousand, two hundred twenty".