45742144 has 28 divisors (see below), whose sum is σ = 103737664. Its totient is φ = 19603584.

The previous prime is 45742141. The next prime is 45742159. The reversal of 45742144 is 44124754.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (45742141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50604 + ... + 51499.

Almost surely, 2^45742144 is an apocalyptic number.

It is an amenable number.

45742144 is an abundant number, since it is smaller than the sum of its proper divisors (57995520).

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

45742144 is a wasteful number, since it uses less digits than its factorization.

45742144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102122 (or 102112 counting only the distinct ones).

The product of its digits is 17920, while the sum is 31.

The square root of 45742144 is about 6763.2938720715. The cubic root of 45742144 is about 357.6340319314.

Adding to 45742144 its reverse (44124754), we get a palindrome (89866898).

The spelling of 45742144 in words is "forty-five million, seven hundred forty-two thousand, one hundred forty-four".