12199430 has 64 divisors (see below), whose sum is σ = 24883200. Its totient is φ = 4287360.

The previous prime is 12199403. The next prime is 12199457. The reversal of 12199430 is 3499121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12199403) and next prime (12199457).

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12199393 and 12199402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206741 + ... + 206799.

It is an arithmetic number, because the mean of its divisors is an integer number (388800).

Almost surely, 2^12199430 is an apocalyptic number.

12199430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12199430 is the 2852-nd pentagonal number.

12199430 is an abundant number, since it is smaller than the sum of its proper divisors (12683770).

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

12199430 is a wasteful number, since it uses less digits than its factorization.

12199430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 12199430 is about 3492.7682430989. The cubic root of 12199430 is about 230.2041665378.

The spelling of 12199430 in words is "twelve million, one hundred ninety-nine thousand, four hundred thirty".