22402002 has 32 divisors (see below), whose sum is σ = 51721344. Its totient is φ = 6336000.

The previous prime is 22401979. The next prime is 22402013. The reversal of 22402002 is 20020422.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1602 + ... + 6882.

It is an arithmetic number, because the mean of its divisors is an integer number (1616292).

Almost surely, 2^22402002 is an apocalyptic number.

22402002 is an abundant number, since it is smaller than the sum of its proper divisors (29319342).

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

22402002 is a wasteful number, since it uses less digits than its factorization.

22402002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5394.

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 22402002 is about 4733.0753216064. The cubic root of 22402002 is about 281.9003470634.

Adding to 22402002 its reverse (20020422), we get a palindrome (42422424).

The spelling of 22402002 in words is "twenty-two million, four hundred two thousand, two".