45665208 has 80 divisors (see below), whose sum is σ = 134673000. Its totient is φ = 14416704.

The previous prime is 45665203. The next prime is 45665209. The reversal of 45665208 is 80256654.

It is a super-2 number, since 2×45665208² = 4170622443366528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45665203) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10458 + ... + 14166.

Almost surely, 2^45665208 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 45665208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67336500).

45665208 is an abundant number, since it is smaller than the sum of its proper divisors (89007792).

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

45665208 is a wasteful number, since it uses less digits than its factorization.

45665208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746 (or 3733 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 45665208 is about 6757.6037172951. The cubic root of 45665208 is about 357.4334118894.

The spelling of 45665208 in words is "forty-five million, six hundred sixty-five thousand, two hundred eight".