2249909869 has 2 divisors, whose sum is σ = 2249909870. Its totient is φ = 2249909868.

The previous prime is 2249909843. The next prime is 2249909917. The reversal of 2249909869 is 9689099422.

2249909869 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., 2006144100 + 243765769 = 44790^2 + 15613^2 .

It is a cyclic number.

It is not a de Polignac number, because 2249909869 - 2²¹ = 2247812717 is a prime.

It is a super-2 number, since 2×2249909869² = 10124188837247194322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2249909839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1124954934 + 1124954935.

It is an arithmetic number, because the mean of its divisors is an integer number (1124954935).

Almost surely, 2^2249909869 is an apocalyptic number.

It is an amenable number.

2249909869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2249909869 is an equidigital number, since it uses as much as digits as its factorization.

2249909869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5038848, while the sum is 58.

The square root of 2249909869 is about 47433.2148288517. The cubic root of 2249909869 is about 1310.3531998306.

The spelling of 2249909869 in words is "two billion, two hundred forty-nine million, nine hundred nine thousand, eight hundred sixty-nine".