20869004 has 24 divisors (see below), whose sum is σ = 41042400. Its totient is φ = 9212544.

The previous prime is 20869003. The next prime is 20869091. The reversal of 20869004 is 40096802.

It is not an unprimeable number, because it can be changed into a prime (20869001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7529 + ... + 9920.

It is an arithmetic number, because the mean of its divisors is an integer number (1710100).

Almost surely, 2^20869004 is an apocalyptic number.

It is an amenable number.

20869004 is a deficient number, since it is larger than the sum of its proper divisors (20173396).

20869004 is a wasteful number, since it uses less digits than its factorization.

20869004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17489 (or 17487 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 20869004 is about 4568.2605004531. The cubic root of 20869004 is about 275.3175571257.

The spelling of 20869004 in words is "twenty million, eight hundred sixty-nine thousand, four".