44402045 has 16 divisors (see below), whose sum is σ = 58365360. Its totient is φ = 32277504.

The previous prime is 44402023. The next prime is 44402053. The reversal of 44402045 is 54020444.

It can be written as a sum of positive squares in 8 ways, for example, as 5139289 + 39262756 = 2267^2 + 6266^2 .

It is a cyclic number.

It is not a de Polignac number, because 44402045 - 2¹² = 44397949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44402045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6542 + ... + 11471.

It is an arithmetic number, because the mean of its divisors is an integer number (3647835).

Almost surely, 2^44402045 is an apocalyptic number.

It is an amenable number.

44402045 is a deficient number, since it is larger than the sum of its proper divisors (13963315).

44402045 is a wasteful number, since it uses less digits than its factorization.

44402045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18064.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 44402045 is about 6663.4859495612. The cubic root of 44402045 is about 354.1068468903.

Adding to 44402045 its reverse (54020444), we get a palindrome (98422489).

It can be divided in two parts, 444020 and 45, that multiplied together give a square (19980900 = 4470²).

The spelling of 44402045 in words is "forty-four million, four hundred two thousand, forty-five".