44991766 has 4 divisors (see below), whose sum is σ = 67487652. Its totient is φ = 22495882.

The previous prime is 44991761. The next prime is 44991767. The reversal of 44991766 is 66719944.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44991761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11247940 + ... + 11247943.

It is an arithmetic number, because the mean of its divisors is an integer number (16871913).

Almost surely, 2^44991766 is an apocalyptic number.

44991766 is a deficient number, since it is larger than the sum of its proper divisors (22495886).

44991766 is a wasteful number, since it uses less digits than its factorization.

44991766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22495885.

The product of its digits is 326592, while the sum is 46.

The square root of 44991766 is about 6707.5901782980. The cubic root of 44991766 is about 355.6676347113.

The spelling of 44991766 in words is "forty-four million, nine hundred ninety-one thousand, seven hundred sixty-six".