20514494 has 32 divisors (see below), whose sum is σ = 41319936. Its totient is φ = 7377120.

The previous prime is 20514457. The next prime is 20514497. The reversal of 20514494 is 49441502.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3122 + ... + 7125.

It is an arithmetic number, because the mean of its divisors is an integer number (1291248).

Almost surely, 2^20514494 is an apocalyptic number.

20514494 is an abundant number, since it is smaller than the sum of its proper divisors (20805442).

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

20514494 is a wasteful number, since it uses less digits than its factorization.

20514494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10280.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 20514494 is about 4529.2928807928. The cubic root of 20514494 is about 273.7496692448.

Adding to 20514494 its reverse (49441502), we get a palindrome (69955996).

The spelling of 20514494 in words is "twenty million, five hundred fourteen thousand, four hundred ninety-four".