20514814 has 4 divisors (see below), whose sum is σ = 30772224. Its totient is φ = 10257406.

The previous prime is 20514787. The next prime is 20514829. The reversal of 20514814 is 41841502.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5128702 + ... + 5128705.

It is an arithmetic number, because the mean of its divisors is an integer number (7693056).

Almost surely, 2^20514814 is an apocalyptic number.

20514814 is a deficient number, since it is larger than the sum of its proper divisors (10257410).

20514814 is a wasteful number, since it uses less digits than its factorization.

20514814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10257409.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 20514814 is about 4529.3282062575. The cubic root of 20514814 is about 273.7510926195.

The spelling of 20514814 in words is "twenty million, five hundred fourteen thousand, eight hundred fourteen".