22343004 has 18 divisors (see below), whose sum is σ = 56478240. Its totient is φ = 7447656.

The previous prime is 22343003. The next prime is 22343029. The reversal of 22343004 is 40034322.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22343003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 310284 + ... + 310355.

It is an arithmetic number, because the mean of its divisors is an integer number (3137680).

Almost surely, 2^22343004 is an apocalyptic number.

It is an amenable number.

22343004 is an abundant number, since it is smaller than the sum of its proper divisors (34135236).

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

22343004 is a wasteful number, since it uses less digits than its factorization.

22343004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620649 (or 620644 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 22343004 is about 4726.8386898645. The cubic root of 22343004 is about 281.6526582127.

Adding to 22343004 its reverse (40034322), we get a palindrome (62377326).

The spelling of 22343004 in words is "twenty-two million, three hundred forty-three thousand, four".