45445444 has 12 divisors (see below), whose sum is σ = 86759568. Its totient is φ = 20657000.

The previous prime is 45445441. The next prime is 45445459. The reversal of 45445444 is 44454454.

It is not an unprimeable number, because it can be changed into a prime (45445441) 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, 516382 + ... + 516469.

It is an arithmetic number, because the mean of its divisors is an integer number (7229964).

Almost surely, 2^45445444 is an apocalyptic number.

45445444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

45445444 is a deficient number, since it is larger than the sum of its proper divisors (41314124).

45445444 is a wasteful number, since it uses less digits than its factorization.

45445444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032866 (or 1032864 counting only the distinct ones).

The product of its digits is 102400, while the sum is 34.

The square root of 45445444 is about 6741.3236089065. The cubic root of 45445444 is about 356.8591063677.

Adding to 45445444 its reverse (44454454), we get a palindrome (89899898).

The spelling of 45445444 in words is "forty-five million, four hundred forty-five thousand, four hundred forty-four".