20453422 has 16 divisors (see below), whose sum is σ = 34020144. Its totient is φ = 9144000.

The previous prime is 20453401. The next prime is 20453437. The reversal of 20453422 is 22435402.

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

It is a junction number, because it is equal to n+sod(n) for n = 20453393 and 20453402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6279 + ... + 8962.

It is an arithmetic number, because the mean of its divisors is an integer number (2126259).

Almost surely, 2^20453422 is an apocalyptic number.

20453422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20453422 is a deficient number, since it is larger than the sum of its proper divisors (13566722).

20453422 is a wasteful number, since it uses less digits than its factorization.

20453422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15315.

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

The square root of 20453422 is about 4522.5459643878. The cubic root of 20453422 is about 273.4777467420.

Adding to 20453422 its reverse (22435402), we get a palindrome (42888824).

The spelling of 20453422 in words is "twenty million, four hundred fifty-three thousand, four hundred twenty-two".