44386690 has 16 divisors (see below), whose sum is σ = 80102520. Its totient is φ = 17708800.

The previous prime is 44386669. The next prime is 44386697. The reversal of 44386690 is 9668344.

It can be written as a sum of positive squares in 4 ways, for example, as 38925121 + 5461569 = 6239^2 + 2337^2 .

It is a super-2 number, since 2×44386690² = 3940356498312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44386697) 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, 1525 + ... + 9544.

Almost surely, 2^44386690 is an apocalyptic number.

44386690 is a deficient number, since it is larger than the sum of its proper divisors (35715830).

44386690 is a wasteful number, since it uses less digits than its factorization.

44386690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11477.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 44386690 is about 6662.3336752222. Note that the first 3 decimals coincide. The cubic root of 44386690 is about 354.0660234138.

The spelling of 44386690 in words is "forty-four million, three hundred eighty-six thousand, six hundred ninety".