20029854 has 32 divisors (see below), whose sum is σ = 43311744. Its totient is φ = 6138720.

The previous prime is 20029847. The next prime is 20029871. The reversal of 20029854 is 45892002.

It is a super-2 number, since 2×20029854² = 802390102522632, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 38037 + ... + 38559.

It is an arithmetic number, because the mean of its divisors is an integer number (1353492).

Almost surely, 2^20029854 is an apocalyptic number.

20029854 is an abundant number, since it is smaller than the sum of its proper divisors (23281890).

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

20029854 is a wasteful number, since it uses less digits than its factorization.

20029854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 20029854 is about 4475.4724890228. The cubic root of 20029854 is about 271.5767548862.

The spelling of 20029854 in words is "twenty million, twenty-nine thousand, eight hundred fifty-four".