20427262 has 4 divisors (see below), whose sum is σ = 30640896. Its totient is φ = 10213630.

The previous prime is 20427257. The next prime is 20427271. The reversal of 20427262 is 26272402.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106814 + ... + 5106817.

It is an arithmetic number, because the mean of its divisors is an integer number (7660224).

Almost surely, 2^20427262 is an apocalyptic number.

20427262 is a deficient number, since it is larger than the sum of its proper divisors (10213634).

20427262 is a wasteful number, since it uses less digits than its factorization.

20427262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10213633.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 20427262 is about 4519.6528627761. The cubic root of 20427262 is about 273.3611039931.

Adding to 20427262 its reverse (26272402), we get a palindrome (46699664).

The spelling of 20427262 in words is "twenty million, four hundred twenty-seven thousand, two hundred sixty-two".