20454122 has 8 divisors (see below), whose sum is σ = 33041316. Its totient is φ = 9440352.

The previous prime is 20454113. The next prime is 20454139. The reversal of 20454122 is 22145402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20421361 + 32761 = 4519^2 + 181^2 .

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

It is a super-2 number, since 2×20454122² = 836742213581768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20454094 and 20454103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393323 + ... + 393374.

Almost surely, 2^20454122 is an apocalyptic number.

20454122 is a deficient number, since it is larger than the sum of its proper divisors (12587194).

20454122 is a wasteful number, since it uses less digits than its factorization.

20454122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786712.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 20454122 is about 4522.6233537627. The cubic root of 20454122 is about 273.4808665498.

Adding to 20454122 its reverse (22145402), we get a palindrome (42599524).

The spelling of 20454122 in words is "twenty million, four hundred fifty-four thousand, one hundred twenty-two".