44399986 has 16 divisors (see below), whose sum is σ = 69206400. Its totient is φ = 21338128.

The previous prime is 44399981. The next prime is 44400001. The reversal of 44399986 is 68999344.

It is not an unprimeable number, because it can be changed into a prime (44399981) 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, 12261 + ... + 15463.

It is an arithmetic number, because the mean of its divisors is an integer number (4325400).

Almost surely, 2^44399986 is an apocalyptic number.

44399986 is a deficient number, since it is larger than the sum of its proper divisors (24806414).

44399986 is a wasteful number, since it uses less digits than its factorization.

44399986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3473.

The product of its digits is 1679616, while the sum is 52.

The square root of 44399986 is about 6663.3314490576. The cubic root of 44399986 is about 354.1013732890.

The spelling of 44399986 in words is "forty-four million, three hundred ninety-nine thousand, nine hundred eighty-six".