22402402 has 8 divisors (see below), whose sum is σ = 36658512. Its totient is φ = 10182900.

The previous prime is 22402399. The next prime is 22402421. The reversal of 22402402 is 20420422.

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

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 3 ways as a sum of consecutive naturals, for example, 509124 + ... + 509167.

It is an arithmetic number, because the mean of its divisors is an integer number (4582314).

Almost surely, 2^22402402 is an apocalyptic number.

22402402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22402402 is a deficient number, since it is larger than the sum of its proper divisors (14256110).

22402402 is a wasteful number, since it uses less digits than its factorization.

22402402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018304.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 22402402 is about 4733.1175772423. The cubic root of 22402402 is about 281.9020248817.

Adding to 22402402 its reverse (20420422), we get a palindrome (42822824).

The spelling of 22402402 in words is "twenty-two million, four hundred two thousand, four hundred two".