20414999 has 6 divisors (see below), whose sum is σ = 22439760. Its totient is φ = 18558980.

The previous prime is 20414993. The next prime is 20415013. The reversal of 20414999 is 99941402.

It is a happy number.

It is not a de Polignac number, because 20414999 - 2⁴ = 20414983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20414993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84239 + ... + 84480.

It is an arithmetic number, because the mean of its divisors is an integer number (3739960).

Almost surely, 2^20414999 is an apocalyptic number.

20414999 is a deficient number, since it is larger than the sum of its proper divisors (2024761).

20414999 is a wasteful number, since it uses less digits than its factorization.

20414999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168741 (or 168730 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 20414999 is about 4518.2960283718. The cubic root of 20414999 is about 273.3063911907.

The spelling of 20414999 in words is "twenty million, four hundred fourteen thousand, nine hundred ninety-nine".