44740621 has 2 divisors, whose sum is σ = 44740622. Its totient is φ = 44740620.

The previous prime is 44740609. The next prime is 44740637. The reversal of 44740621 is 12604744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44702596 + 38025 = 6686^2 + 195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44740621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44740621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44740601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22370310 + 22370311.

It is an arithmetic number, because the mean of its divisors is an integer number (22370311).

Almost surely, 2^44740621 is an apocalyptic number.

It is an amenable number.

44740621 is a deficient number, since it is larger than the sum of its proper divisors (1).

44740621 is an equidigital number, since it uses as much as digits as its factorization.

44740621 is an odious number, because the sum of its binary digits is odd.

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

The square root of 44740621 is about 6688.8430240214. The cubic root of 44740621 is about 355.0046180712.

The spelling of 44740621 in words is "forty-four million, seven hundred forty thousand, six hundred twenty-one".