20544454 has 16 divisors (see below), whose sum is σ = 36039168. Its totient is φ = 8599752.

The previous prime is 20544439. The next prime is 20544473. The reversal of 20544454 is 45444502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16462 + ... + 17665.

It is an arithmetic number, because the mean of its divisors is an integer number (2252448).

Almost surely, 2^20544454 is an apocalyptic number.

20544454 is a deficient number, since it is larger than the sum of its proper divisors (15494714).

20544454 is a wasteful number, since it uses less digits than its factorization.

20544454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34179.

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 20544454 is about 4532.5990336671. The cubic root of 20544454 is about 273.8828685774.

Adding to 20544454 its reverse (45444502), we get a palindrome (65988956).

The spelling of 20544454 in words is "twenty million, five hundred forty-four thousand, four hundred fifty-four".