20404614 has 16 divisors (see below), whose sum is σ = 40854528. Its totient is φ = 6793992.

The previous prime is 20404591. The next prime is 20404679. The reversal of 20404614 is 41640402.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7779 + ... + 10065.

It is an arithmetic number, because the mean of its divisors is an integer number (2553408).

Almost surely, 2^20404614 is an apocalyptic number.

20404614 is an abundant number, since it is smaller than the sum of its proper divisors (20449914).

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

20404614 is a wasteful number, since it uses less digits than its factorization.

20404614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 20404614 is about 4517.1466657615. The cubic root of 20404614 is about 273.2600401674.

The spelling of 20404614 in words is "twenty million, four hundred four thousand, six hundred fourteen".