45195220 has 48 divisors (see below), whose sum is σ = 110533248. Its totient is φ = 15200640.

The previous prime is 45195209. The next prime is 45195233. The reversal of 45195220 is 2259154.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4375 + ... + 10465.

It is an arithmetic number, because the mean of its divisors is an integer number (2302776).

Almost surely, 2^45195220 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 45195220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55266624).

45195220 is an abundant number, since it is smaller than the sum of its proper divisors (65338028).

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

45195220 is a wasteful number, since it uses less digits than its factorization.

45195220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160 (or 6158 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 45195220 is about 6722.7390251296. The cubic root of 45195220 is about 356.2029415629.

The spelling of 45195220 in words is "forty-five million, one hundred ninety-five thousand, two hundred twenty".