12199842 has 32 divisors (see below), whose sum is σ = 27302400. Its totient is φ = 4037904.

The previous prime is 12199841. The next prime is 12199861. The reversal of 12199842 is 24899121.

12199842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12199842² = 297672289649928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12199797 and 12199806.

It is not an unprimeable number, because it can be changed into a prime (12199841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7759 + ... + 9197.

It is an arithmetic number, because the mean of its divisors is an integer number (853200).

Almost surely, 2^12199842 is an apocalyptic number.

12199842 is an abundant number, since it is smaller than the sum of its proper divisors (15102558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12199842 is a wasteful number, since it uses less digits than its factorization.

12199842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 1601 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 12199842 is about 3492.8272216072. The cubic root of 12199842 is about 230.2067579990.

It can be divided in two parts, 12199 and 842, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 12199842 in words is "twelve million, one hundred ninety-nine thousand, eight hundred forty-two".