45820220 has 24 divisors (see below), whose sum is σ = 96354384. Its totient is φ = 18302976.

The previous prime is 45820213. The next prime is 45820259. The reversal of 45820220 is 2202854.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22067 + ... + 24053.

It is an arithmetic number, because the mean of its divisors is an integer number (4014766).

Almost surely, 2^45820220 is an apocalyptic number.

It is an amenable number.

45820220 is an abundant number, since it is smaller than the sum of its proper divisors (50534164).

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

45820220 is a wasteful number, since it uses less digits than its factorization.

45820220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149 (or 3147 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 45820220 is about 6769.0634507294. The cubic root of 45820220 is about 357.8373948151.

The spelling of 45820220 in words is "forty-five million, eight hundred twenty thousand, two hundred twenty".