20126562 has 8 divisors (see below), whose sum is σ = 40253136. Its totient is φ = 6708852.

The previous prime is 20126527. The next prime is 20126563. The reversal of 20126562 is 26562102.

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

20126562 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20126563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677208 + ... + 1677219.

It is an arithmetic number, because the mean of its divisors is an integer number (5031642).

Almost surely, 2^20126562 is an apocalyptic number.

20126562 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.

20126562 is a wasteful number, since it uses less digits than its factorization.

20126562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354432.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 20126562 is about 4486.2637015673. The cubic root of 20126562 is about 272.0131283312.

Adding to 20126562 its reverse (26562102), we get a palindrome (46688664).

The spelling of 20126562 in words is "twenty million, one hundred twenty-six thousand, five hundred sixty-two".