20800774 has 8 divisors (see below), whose sum is σ = 31232448. Its totient is φ = 10389960.

The previous prime is 20800739. The next prime is 20800807. The reversal of 20800774 is 47700802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2422 + ... + 6889.

It is an arithmetic number, because the mean of its divisors is an integer number (3904056).

Almost surely, 2^20800774 is an apocalyptic number.

20800774 is a deficient number, since it is larger than the sum of its proper divisors (10431674).

20800774 is a wasteful number, since it uses less digits than its factorization.

20800774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10430.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 20800774 is about 4560.7865549705. The cubic root of 20800774 is about 275.0171846011.

Adding to 20800774 its sum of digits (28), we get a palindrome (20800802).

The spelling of 20800774 in words is "twenty million, eight hundred thousand, seven hundred seventy-four".