20126544 has 20 divisors (see below), whose sum is σ = 51993696. Its totient is φ = 6708832.

The previous prime is 20126527. The next prime is 20126563. The reversal of 20126544 is 44562102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209604 + ... + 209699.

Almost surely, 2^20126544 is an apocalyptic number.

20126544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20126544 is an abundant number, since it is smaller than the sum of its proper divisors (31867152).

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

20126544 is a wasteful number, since it uses less digits than its factorization.

20126544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419314 (or 419308 counting only the distinct ones).

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

The square root of 20126544 is about 4486.2616954431. The cubic root of 20126544 is about 272.0130472403.

Adding to 20126544 its reverse (44562102), we get a palindrome (64688646).

The spelling of 20126544 in words is "twenty million, one hundred twenty-six thousand, five hundred forty-four".