45042544 has 40 divisors (see below), whose sum is σ = 90262080. Its totient is φ = 21762048.

The previous prime is 45042541. The next prime is 45042553. The reversal of 45042544 is 44524054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45042541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66592 + ... + 67264.

It is an arithmetic number, because the mean of its divisors is an integer number (2256552).

Almost surely, 2^45042544 is an apocalyptic number.

It is an amenable number.

45042544 is an abundant number, since it is smaller than the sum of its proper divisors (45219536).

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

45042544 is a wasteful number, since it uses less digits than its factorization.

45042544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 45042544 is about 6711.3742258944. The cubic root of 45042544 is about 355.8013873418.

Adding to 45042544 its reverse (44524054), we get a palindrome (89566598).

The spelling of 45042544 in words is "forty-five million, forty-two thousand, five hundred forty-four".