22351402 has 16 divisors (see below), whose sum is σ = 35108640. Its totient is φ = 10658032.

The previous prime is 22351397. The next prime is 22351409. The reversal of 22351402 is 20415322.

It is a self number, because there is not a number n which added to its sum of digits gives 22351402.

It is not an unprimeable number, because it can be changed into a prime (22351409) by changing a digit.

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, 2493 + ... + 7135.

It is an arithmetic number, because the mean of its divisors is an integer number (2194290).

Almost surely, 2^22351402 is an apocalyptic number.

22351402 is a deficient number, since it is larger than the sum of its proper divisors (12757238).

22351402 is a wasteful number, since it uses less digits than its factorization.

22351402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4757.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 22351402 is about 4727.7269379692. The cubic root of 22351402 is about 281.6879417812.

Adding to 22351402 its reverse (20415322), we get a palindrome (42766724).

The spelling of 22351402 in words is "twenty-two million, three hundred fifty-one thousand, four hundred two".