20226574 has 4 divisors (see below), whose sum is σ = 30339864. Its totient is φ = 10113286.

The previous prime is 20226529. The next prime is 20226587. The reversal of 20226574 is 47562202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47562202 = 2 ⋅23781101.

It is a super-2 number, since 2×20226574² = 818228591554952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5056642 + ... + 5056645.

It is an arithmetic number, because the mean of its divisors is an integer number (7584966).

Almost surely, 2^20226574 is an apocalyptic number.

20226574 is a deficient number, since it is larger than the sum of its proper divisors (10113290).

20226574 is a wasteful number, since it uses less digits than its factorization.

20226574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10113289.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 20226574 is about 4497.3963578942. The cubic root of 20226574 is about 272.4629425241.

Adding to 20226574 its reverse (47562202), we get a palindrome (67788776).

The spelling of 20226574 in words is "twenty million, two hundred twenty-six thousand, five hundred seventy-four".