20226510 has 40 divisors (see below), whose sum is σ = 54389016. Its totient is φ = 5393520.

The previous prime is 20226509. The next prime is 20226511. The reversal of 20226510 is 1562202.

It is an interprime number because it is at equal distance from previous prime (20226509) and next prime (20226511).

It is a super-2 number, since 2×20226510² = 818223413560200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20226511) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11676 + ... + 13295.

Almost surely, 2^20226510 is an apocalyptic number.

20226510 is an abundant number, since it is smaller than the sum of its proper divisors (34162506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20226510 is a wasteful number, since it uses less digits than its factorization.

20226510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24990 (or 24981 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 20226510 is about 4497.3892426607. The cubic root of 20226510 is about 272.4626551522.

Adding to 20226510 its reverse (1562202), we get a palindrome (21788712).

It can be divided in two parts, 20226 and 510, that added together give a 4-th power (20736 = 12⁴).

The spelling of 20226510 in words is "twenty million, two hundred twenty-six thousand, five hundred ten".