22420354 has 32 divisors (see below), whose sum is σ = 38983680. Its totient is φ = 9570000.

The previous prime is 22420339. The next prime is 22420357. The reversal of 22420354 is 45302422.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (22420357) 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 15 ways as a sum of consecutive naturals, for example, 29479 + ... + 30229.

It is an arithmetic number, because the mean of its divisors is an integer number (1218240).

Almost surely, 2^22420354 is an apocalyptic number.

22420354 is a deficient number, since it is larger than the sum of its proper divisors (16563326).

22420354 is a wasteful number, since it uses less digits than its factorization.

22420354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 22420354 is about 4735.0136219445. The cubic root of 22420354 is about 281.9773048147.

Adding to 22420354 its reverse (45302422), we get a palindrome (67722776).

The spelling of 22420354 in words is "twenty-two million, four hundred twenty thousand, three hundred fifty-four".