45690144 has 48 divisors (see below), whose sum is σ = 125157312. Its totient is φ = 14567168.

The previous prime is 45690143. The next prime is 45690163. The reversal of 45690144 is 44109654.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (45690143) 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 7 ways as a sum of consecutive naturals, for example, 8139 + ... + 12554.

It is an arithmetic number, because the mean of its divisors is an integer number (2607444).

Almost surely, 2^45690144 is an apocalyptic number.

It is an amenable number.

45690144 is an abundant number, since it is smaller than the sum of its proper divisors (79467168).

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

45690144 is a wasteful number, since it uses less digits than its factorization.

45690144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20729 (or 20721 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 45690144 is about 6759.4484982134. The cubic root of 45690144 is about 357.4984602278.

Adding to 45690144 its reverse (44109654), we get a palindrome (89799798).

The spelling of 45690144 in words is "forty-five million, six hundred ninety thousand, one hundred forty-four".