20226641 has 8 divisors (see below), whose sum is σ = 20824320. Its totient is φ = 19634832.

The previous prime is 20226631. The next prime is 20226649. The reversal of 20226641 is 14662202.

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

It is not a de Polignac number, because 20226641 - 2¹⁰ = 20225617 is a prime.

It is a super-2 number, since 2×20226641² = 818234012285762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20226649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6080 + ... + 8798.

It is an arithmetic number, because the mean of its divisors is an integer number (2603040).

Almost surely, 2^20226641 is an apocalyptic number.

It is an amenable number.

20226641 is a deficient number, since it is larger than the sum of its proper divisors (597679).

20226641 is a wasteful number, since it uses less digits than its factorization.

20226641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20226641 is about 4497.4038066422. The cubic root of 20226641 is about 272.4632433659.

Adding to 20226641 its reverse (14662202), we get a palindrome (34888843).

The spelling of 20226641 in words is "twenty million, two hundred twenty-six thousand, six hundred forty-one".