22402434 has 8 divisors (see below), whose sum is σ = 44804880. Its totient is φ = 7467476.

The previous prime is 22402423. The next prime is 22402453. The reversal of 22402434 is 43420422.

It is a sphenic number, since it is the product of 3 distinct primes.

22402434 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 22402434.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1866864 + ... + 1866875.

It is an arithmetic number, because the mean of its divisors is an integer number (5600610).

Almost surely, 2^22402434 is an apocalyptic number.

22402434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22402434 is a wasteful number, since it uses less digits than its factorization.

22402434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733744.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 22402434 is about 4733.1209576769. The cubic root of 22402434 is about 281.9021591063.

Adding to 22402434 its reverse (43420422), we get a palindrome (65822856).

The spelling of 22402434 in words is "twenty-two million, four hundred two thousand, four hundred thirty-four".