45388169 has 12 divisors (see below), whose sum is σ = 48737520. Its totient is φ = 42250680.

The previous prime is 45388157. The next prime is 45388243. The reversal of 45388169 is 96188354.

It is a de Polignac number, because none of the positive numbers 2^k-45388169 is a prime.

It is a super-2 number, since 2×45388169² = 4120171770345122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45388129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20234 + ... + 22364.

It is an arithmetic number, because the mean of its divisors is an integer number (4061460).

Almost surely, 2^45388169 is an apocalyptic number.

It is an amenable number.

45388169 is a deficient number, since it is larger than the sum of its proper divisors (3349351).

45388169 is a wasteful number, since it uses less digits than its factorization.

45388169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228 (or 2209 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 45388169 is about 6737.0742166017. The cubic root of 45388169 is about 356.7091265529.

The spelling of 45388169 in words is "forty-five million, three hundred eighty-eight thousand, one hundred sixty-nine".