12309970 has 8 divisors (see below), whose sum is σ = 22157964. Its totient is φ = 4923984.

The previous prime is 12309961. The next prime is 12310013. The reversal of 12309970 is 7990321.

It can be written as a sum of positive squares in 2 ways, for example, as 10517049 + 1792921 = 3243^2 + 1339^2 .

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

It is a super-2 number, since 2×12309970² = 303070722801800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615489 + ... + 615508.

Almost surely, 2^12309970 is an apocalyptic number.

12309970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12309970 is a deficient number, since it is larger than the sum of its proper divisors (9847994).

12309970 is a wasteful number, since it uses less digits than its factorization.

12309970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231004.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 12309970 is about 3508.5566833101. The cubic root of 12309970 is about 230.8973763777.

The spelling of 12309970 in words is "twelve million, three hundred nine thousand, nine hundred seventy".