20541426 has 8 divisors (see below), whose sum is σ = 41082864. Its totient is φ = 6847140.

The previous prime is 20541419. The next prime is 20541431. The reversal of 20541426 is 62414502.

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

20541426 is an admirable number.

It is a super-2 number, since 2×20541426² = 843900364226952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20541396 and 20541405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1711780 + ... + 1711791.

It is an arithmetic number, because the mean of its divisors is an integer number (5135358).

Almost surely, 2^20541426 is an apocalyptic number.

20541426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20541426 is a wasteful number, since it uses less digits than its factorization.

20541426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423576.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20541426 is about 4532.2649966656. The cubic root of 20541426 is about 273.8694122602.

Adding to 20541426 its reverse (62414502), we get a palindrome (82955928).

The spelling of 20541426 in words is "twenty million, five hundred forty-one thousand, four hundred twenty-six".