22420355 has 8 divisors (see below), whose sum is σ = 26970864. Its totient is φ = 17892000.

The previous prime is 22420339. The next prime is 22420357. The reversal of 22420355 is 55302422.

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

It is not a de Polignac number, because 22420355 - 2⁴ = 22420339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22420355.

It is not an unprimeable number, because it can be changed into a prime (22420357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3221 + ... + 7430.

It is an arithmetic number, because the mean of its divisors is an integer number (3371358).

Almost surely, 2^22420355 is an apocalyptic number.

22420355 is a deficient number, since it is larger than the sum of its proper divisors (4550509).

22420355 is a wasteful number, since it uses less digits than its factorization.

22420355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11077.

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

The square root of 22420355 is about 4735.0137275408. The cubic root of 22420355 is about 281.9773090070.

Adding to 22420355 its reverse (55302422), we get a palindrome (77722777).

The spelling of 22420355 in words is "twenty-two million, four hundred twenty thousand, three hundred fifty-five".