44722621 has 2 divisors, whose sum is σ = 44722622. Its totient is φ = 44722620.

The previous prime is 44722583. The next prime is 44722627. The reversal of 44722621 is 12622744.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39200121 + 5522500 = 6261^2 + 2350^2 .

It is a cyclic number.

It is not a de Polignac number, because 44722621 - 2⁷ = 44722493 is a prime.

It is a super-2 number, since 2×44722621² = 4000225658219282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44722621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44722627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22361310 + 22361311.

It is an arithmetic number, because the mean of its divisors is an integer number (22361311).

Almost surely, 2^44722621 is an apocalyptic number.

It is an amenable number.

44722621 is a deficient number, since it is larger than the sum of its proper divisors (1).

44722621 is an equidigital number, since it uses as much as digits as its factorization.

44722621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 28.

The square root of 44722621 is about 6687.4973644855. The cubic root of 44722621 is about 354.9570033226.

The spelling of 44722621 in words is "forty-four million, seven hundred twenty-two thousand, six hundred twenty-one".