20804373 has 24 divisors (see below), whose sum is σ = 32011200. Its totient is φ = 12982464.

The previous prime is 20804369. The next prime is 20804387. The reversal of 20804373 is 37340802.

It is not a de Polignac number, because 20804373 - 2² = 20804369 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20804473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14536 + ... + 15902.

It is an arithmetic number, because the mean of its divisors is an integer number (1333800).

Almost surely, 2^20804373 is an apocalyptic number.

It is an amenable number.

20804373 is a deficient number, since it is larger than the sum of its proper divisors (11206827).

20804373 is a wasteful number, since it uses less digits than its factorization.

20804373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20804373 is about 4561.1810970405. The cubic root of 20804373 is about 275.0330450648.

The spelling of 20804373 in words is "twenty million, eight hundred four thousand, three hundred seventy-three".