45220380 has 48 divisors (see below), whose sum is σ = 133284480. Its totient is φ = 11423808.

The previous prime is 45220379. The next prime is 45220381. The reversal of 45220380 is 8302254.

It is an interprime number because it is at equal distance from previous prime (45220379) and next prime (45220381).

It is a self number, because there is not a number n which added to its sum of digits gives 45220380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45220381) 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, 18694 + ... + 20973.

It is an arithmetic number, because the mean of its divisors is an integer number (2776760).

Almost surely, 2^45220380 is an apocalyptic number.

It is an amenable number.

45220380 is an abundant number, since it is smaller than the sum of its proper divisors (88064100).

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

45220380 is a wasteful number, since it uses less digits than its factorization.

45220380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39698 (or 39696 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 45220380 is about 6724.6100258677. The cubic root of 45220380 is about 356.2690282234.

The spelling of 45220380 in words is "forty-five million, two hundred twenty thousand, three hundred eighty".