22355402 has 32 divisors (see below), whose sum is σ = 36854784. Its totient is φ = 10137600.

The previous prime is 22355393. The next prime is 22355407. The reversal of 22355402 is 20455322.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (22355407) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 86858 + ... + 87114.

It is an arithmetic number, because the mean of its divisors is an integer number (1151712).

Almost surely, 2^22355402 is an apocalyptic number.

22355402 is a deficient number, since it is larger than the sum of its proper divisors (14499382).

22355402 is a wasteful number, since it uses less digits than its factorization.

22355402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 22355402 is about 4728.1499553208. The cubic root of 22355402 is about 281.7047443746.

The spelling of 22355402 in words is "twenty-two million, three hundred fifty-five thousand, four hundred two".