45242188 has 24 divisors (see below), whose sum is σ = 82237680. Its totient is φ = 21761280.

The previous prime is 45242159. The next prime is 45242209. The reversal of 45242188 is 88124254.

45242188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 10083 + ... + 13861.

It is an arithmetic number, because the mean of its divisors is an integer number (3426570).

Almost surely, 2^45242188 is an apocalyptic number.

It is an amenable number.

45242188 is a deficient number, since it is larger than the sum of its proper divisors (36995492).

45242188 is a wasteful number, since it uses less digits than its factorization.

45242188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897 (or 3895 counting only the distinct ones).

The product of its digits is 20480, while the sum is 34.

The square root of 45242188 is about 6726.2313370862. The cubic root of 45242188 is about 356.3262905044.

The spelling of 45242188 in words is "forty-five million, two hundred forty-two thousand, one hundred eighty-eight".