20449126 has 4 divisors (see below), whose sum is σ = 30673692. Its totient is φ = 10224562.

The previous prime is 20449109. The next prime is 20449127. The reversal of 20449126 is 62194402.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20449094 and 20449103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20449127) by changing a digit.

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 as a sum of consecutive naturals, namely, 5112280 + ... + 5112283.

It is an arithmetic number, because the mean of its divisors is an integer number (7668423).

Almost surely, 2^20449126 is an apocalyptic number.

20449126 is a deficient number, since it is larger than the sum of its proper divisors (10224566).

20449126 is a wasteful number, since it uses less digits than its factorization.

20449126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10224565.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20449126 is about 4522.0709857321. The cubic root of 20449126 is about 273.4585984765.

The spelling of 20449126 in words is "twenty million, four hundred forty-nine thousand, one hundred twenty-six".