12355442 has 16 divisors (see below), whose sum is σ = 20476800. Its totient is φ = 5544240.

The previous prime is 12355433. The next prime is 12355451. The reversal of 12355442 is 24455321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12355433) and next prime (12355451).

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 7 ways as a sum of consecutive naturals, for example, 1817 + ... + 5292.

It is an arithmetic number, because the mean of its divisors is an integer number (1279800).

Almost surely, 2^12355442 is an apocalyptic number.

12355442 is a deficient number, since it is larger than the sum of its proper divisors (8121358).

12355442 is a wasteful number, since it uses less digits than its factorization.

12355442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7201.

The product of its digits is 4800, while the sum is 26.

The square root of 12355442 is about 3515.0308675743. The cubic root of 12355442 is about 231.1813322292.

The spelling of 12355442 in words is "twelve million, three hundred fifty-five thousand, four hundred forty-two".