20190814 has 16 divisors (see below), whose sum is σ = 34845696. Its totient is φ = 8595000.

The previous prime is 20190811. The next prime is 20190823. The reversal of 20190814 is 41809102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20190811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2662 + ... + 6889.

It is an arithmetic number, because the mean of its divisors is an integer number (2177856).

Almost surely, 2^20190814 is an apocalyptic number.

20190814 is a deficient number, since it is larger than the sum of its proper divisors (14654882).

20190814 is a wasteful number, since it uses less digits than its factorization.

20190814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9711.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 20190814 is about 4493.4189655540. The cubic root of 20190814 is about 272.3022789269.

Adding to 20190814 its reverse (41809102), we get a palindrome (61999916).

The spelling of 20190814 in words is "twenty million, one hundred ninety thousand, eight hundred fourteen".