12239770 has 8 divisors (see below), whose sum is σ = 22031604. Its totient is φ = 4895904.

The previous prime is 12239753. The next prime is 12239791. The reversal of 12239770 is 7793221.

It can be written as a sum of positive squares in 2 ways, for example, as 10778089 + 1461681 = 3283^2 + 1209^2 .

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

It is an unprimeable number.

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, 611979 + ... + 611998.

Almost surely, 2^12239770 is an apocalyptic number.

12239770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12239770 is a deficient number, since it is larger than the sum of its proper divisors (9791834).

12239770 is a wasteful number, since it uses less digits than its factorization.

12239770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223984.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 12239770 is about 3498.5382661906. The cubic root of 12239770 is about 230.4576269859.

The spelling of 12239770 in words is "twelve million, two hundred thirty-nine thousand, seven hundred seventy".