45189396 has 72 divisors (see below), whose sum is σ = 131890304. Its totient is φ = 12778560.

The previous prime is 45189377. The next prime is 45189407. The reversal of 45189396 is 69398154.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25086 + ... + 26826.

Almost surely, 2^45189396 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 45189396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65945152).

45189396 is an abundant number, since it is smaller than the sum of its proper divisors (86700908).

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

45189396 is a wasteful number, since it uses less digits than its factorization.

45189396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861 (or 1856 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 45189396 is about 6722.3058543925. The cubic root of 45189396 is about 356.1876404238.

The spelling of 45189396 in words is "forty-five million, one hundred eighty-nine thousand, three hundred ninety-six".