244802189 has 4 divisors (see below), whose sum is σ = 246671040. Its totient is φ = 242933340.

The previous prime is 244802171. The next prime is 244802191. The reversal of 244802189 is 981208442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 981208442 = 2 ⋅490604221.

It is a cyclic number.

It is not a de Polignac number, because 244802189 - 2⁸ = 244801933 is a prime.

It is a super-2 number, since 2×244802189² = 119856223478383442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244805189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 934229 + ... + 934490.

It is an arithmetic number, because the mean of its divisors is an integer number (61667760).

Almost surely, 2^244802189 is an apocalyptic number.

It is an amenable number.

244802189 is a deficient number, since it is larger than the sum of its proper divisors (1868851).

244802189 is a wasteful number, since it uses less digits than its factorization.

244802189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868850.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 244802189 is about 15646.1557259283. The cubic root of 244802189 is about 625.5640254607.

The spelling of 244802189 in words is "two hundred forty-four million, eight hundred two thousand, one hundred eighty-nine".