20084994 has 48 divisors (see below), whose sum is σ = 45559800. Its totient is φ = 6386688.

The previous prime is 20084989. The next prime is 20085017. The reversal of 20084994 is 49948002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18020025 + 2064969 = 4245^2 + 1437^2 .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56722 + ... + 57074.

Almost surely, 2^20084994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20084994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22779900).

20084994 is an abundant number, since it is smaller than the sum of its proper divisors (25474806).

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

20084994 is a wasteful number, since it uses less digits than its factorization.

20084994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 20084994 is about 4481.6284986598. The cubic root of 20084994 is about 271.8257336017.

The spelling of 20084994 in words is "twenty million, eighty-four thousand, nine hundred ninety-four".