12289370 has 8 divisors (see below), whose sum is σ = 22120884. Its totient is φ = 4915744.

The previous prime is 12289369. The next prime is 12289373. The reversal of 12289370 is 7398221.

It can be written as a sum of positive squares in 2 ways, for example, as 10387729 + 1901641 = 3223^2 + 1379^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12289370² = 302057229993800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12289373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614459 + ... + 614478.

Almost surely, 2^12289370 is an apocalyptic number.

12289370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12289370 is a deficient number, since it is larger than the sum of its proper divisors (9831514).

12289370 is a wasteful number, since it uses less digits than its factorization.

12289370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228944.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 12289370 is about 3505.6197740200. The cubic root of 12289370 is about 230.7685068068.

The spelling of 12289370 in words is "twelve million, two hundred eighty-nine thousand, three hundred seventy".