44949661 has 4 divisors (see below), whose sum is σ = 45142812. Its totient is φ = 44756512.

The previous prime is 44949643. The next prime is 44949673. The reversal of 44949661 is 16694944.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31304025 + 13645636 = 5595^2 + 3694^2 .

It is a cyclic number.

It is not a de Polignac number, because 44949661 - 2⁷ = 44949533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44949601) 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, 96226 + ... + 96691.

It is an arithmetic number, because the mean of its divisors is an integer number (11285703).

Almost surely, 2^44949661 is an apocalyptic number.

It is an amenable number.

44949661 is a deficient number, since it is larger than the sum of its proper divisors (193151).

44949661 is a wasteful number, since it uses less digits than its factorization.

44949661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193150.

The product of its digits is 186624, while the sum is 43.

The square root of 44949661 is about 6704.4508350796. The cubic root of 44949661 is about 355.5566509985.

The spelling of 44949661 in words is "forty-four million, nine hundred forty-nine thousand, six hundred sixty-one".