45391188 has 24 divisors (see below), whose sum is σ = 107255680. Its totient is φ = 14938560.

The previous prime is 45391183. The next prime is 45391201. The reversal of 45391188 is 88119354.

45391188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45391183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22993 + ... + 24888.

Almost surely, 2^45391188 is an apocalyptic number.

It is an amenable number.

45391188 is an abundant number, since it is smaller than the sum of its proper divisors (61864492).

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

45391188 is a wasteful number, since it uses less digits than its factorization.

45391188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47967 (or 47965 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 45391188 is about 6737.2982715626. The cubic root of 45391188 is about 356.7170352290.

The spelling of 45391188 in words is "forty-five million, three hundred ninety-one thousand, one hundred eighty-eight".