20803492 has 12 divisors (see below), whose sum is σ = 36440320. Its totient is φ = 10391976.

The previous prime is 20803487. The next prime is 20803543. The reversal of 20803492 is 29430802.

It is a self number, because there is not a number n which added to its sum of digits gives 20803492.

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, 4609 + ... + 7927.

Almost surely, 2^20803492 is an apocalyptic number.

It is an amenable number.

20803492 is a deficient number, since it is larger than the sum of its proper divisors (15636828).

20803492 is a wasteful number, since it uses less digits than its factorization.

20803492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4890 (or 4888 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 20803492 is about 4561.0845201553. The cubic root of 20803492 is about 275.0291627475.

The spelling of 20803492 in words is "twenty million, eight hundred three thousand, four hundred ninety-two".