45442385 has 8 divisors (see below), whose sum is σ = 55014120. Its totient is φ = 36031744.

The previous prime is 45442381. The next prime is 45442399. The reversal of 45442385 is 58324454.

45442385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2879809 + 42562576 = 1697^2 + 6524^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45442385 - 2² = 45442381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45442381) 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, 39650 + ... + 40779.

It is an arithmetic number, because the mean of its divisors is an integer number (6876765).

Almost surely, 2^45442385 is an apocalyptic number.

It is an amenable number.

45442385 is a deficient number, since it is larger than the sum of its proper divisors (9571735).

45442385 is a wasteful number, since it uses less digits than its factorization.

45442385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80547.

The product of its digits is 76800, while the sum is 35.

The square root of 45442385 is about 6741.0967208608. The cubic root of 45442385 is about 356.8510992834.

The spelling of 45442385 in words is "forty-five million, four hundred forty-two thousand, three hundred eighty-five".