44021494969 has 3 divisors (see below), whose sum is σ = 44021704783. Its totient is φ = 44021285156.

The previous prime is 44021494939. The next prime is 44021495059. The reversal of 44021494969 is 96949412044.

The square root of 44021494969 is 209813.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 43980381225 + 41113744 = 209715^2 + 6412^2 .

It is not a de Polignac number, because 44021494969 - 2⁹ = 44021494457 is a prime.

It is a super-2 number, since 2×44021494969² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44021494919) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 104907 + ... + 314719.

Almost surely, 2^44021494969 is an apocalyptic number.

44021494969 is the 209813-rd square number.

44021494969 is the 104907-th centered octagonal number.

It is an amenable number.

44021494969 is a deficient number, since it is larger than the sum of its proper divisors (209814).

44021494969 is an frugal number, since it uses more digits than its factorization.

44021494969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419626 (or 209813 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 52.

The spelling of 44021494969 in words is "forty-four billion, twenty-one million, four hundred ninety-four thousand, nine hundred sixty-nine".