244402861 has 2 divisors, whose sum is σ = 244402862. Its totient is φ = 244402860.

The previous prime is 244402843. The next prime is 244402883. The reversal of 244402861 is 168204442.

244402861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243547236 + 855625 = 15606^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 244402861 - 2⁹ = 244402349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244402891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122201430 + 122201431.

It is an arithmetic number, because the mean of its divisors is an integer number (122201431).

Almost surely, 2^244402861 is an apocalyptic number.

It is an amenable number.

244402861 is a deficient number, since it is larger than the sum of its proper divisors (1).

244402861 is an equidigital number, since it uses as much as digits as its factorization.

244402861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 244402861 is about 15633.3892998287. The cubic root of 244402861 is about 625.2236946476.

The spelling of 244402861 in words is "two hundred forty-four million, four hundred two thousand, eight hundred sixty-one".