20803850 has 12 divisors (see below), whose sum is σ = 38695254. Its totient is φ = 8321520.

The previous prime is 20803847. The next prime is 20803877. The reversal of 20803850 is 5830802.

It can be written as a sum of positive squares in 3 ways, for example, as 16168441 + 4635409 = 4021^2 + 2153^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 207989 + ... + 208088.

Almost surely, 2^20803850 is an apocalyptic number.

20803850 is a deficient number, since it is larger than the sum of its proper divisors (17891404).

20803850 is a wasteful number, since it uses less digits than its factorization.

20803850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416089 (or 416084 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 20803850 is about 4561.1237650386. The cubic root of 20803850 is about 275.0307403653.

The spelling of 20803850 in words is "twenty million, eight hundred three thousand, eight hundred fifty".