20454027 has 8 divisors (see below), whose sum is σ = 29751360. Its totient is φ = 12396360.

The previous prime is 20454023. The next prime is 20454029. The reversal of 20454027 is 72045402.

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

It is not a de Polignac number, because 20454027 - 2² = 20454023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20453988 and 20454006.

It is not an unprimeable number, because it can be changed into a prime (20454023) 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, 309877 + ... + 309942.

It is an arithmetic number, because the mean of its divisors is an integer number (3718920).

Almost surely, 2^20454027 is an apocalyptic number.

20454027 is a deficient number, since it is larger than the sum of its proper divisors (9297333).

20454027 is a wasteful number, since it uses less digits than its factorization.

20454027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619833.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 20454027 is about 4522.6128509966. The cubic root of 20454027 is about 273.4804431515.

Adding to 20454027 its reverse (72045402), we get a palindrome (92499429).

The spelling of 20454027 in words is "twenty million, four hundred fifty-four thousand, twenty-seven".