22347842 has 16 divisors (see below), whose sum is σ = 37348992. Its totient is φ = 9941520.

The previous prime is 22347839. The next prime is 22347863. The reversal of 22347842 is 24874322.

It is a junction number, because it is equal to n+sod(n) for n = 22347799 and 22347808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9773 + ... + 11840.

It is an arithmetic number, because the mean of its divisors is an integer number (2334312).

Almost surely, 2^22347842 is an apocalyptic number.

22347842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22347842 is a deficient number, since it is larger than the sum of its proper divisors (15001150).

22347842 is a wasteful number, since it uses less digits than its factorization.

22347842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21673.

The product of its digits is 21504, while the sum is 32.

The square root of 22347842 is about 4727.3504206902. The cubic root of 22347842 is about 281.6729857870.

The spelling of 22347842 in words is "twenty-two million, three hundred forty-seven thousand, eight hundred forty-two".