22450402 has 16 divisors (see below), whose sum is σ = 36352512. Its totient is φ = 10337040.

The previous prime is 22450397. The next prime is 22450423. The reversal of 22450402 is 20405422.

It is a self number, because there is not a number n which added to its sum of digits gives 22450402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14527 + ... + 15997.

It is an arithmetic number, because the mean of its divisors is an integer number (2272032).

Almost surely, 2^22450402 is an apocalyptic number.

22450402 is a deficient number, since it is larger than the sum of its proper divisors (13902110).

22450402 is a wasteful number, since it uses less digits than its factorization.

22450402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 22450402 is about 4738.1855176850. The cubic root of 22450402 is about 282.1032182553.

Adding to 22450402 its reverse (20405422), we get a palindrome (42855824).

The spelling of 22450402 in words is "twenty-two million, four hundred fifty thousand, four hundred two".