16850404 has 6 divisors (see below), whose sum is σ = 29488214. Its totient is φ = 8425200.

The previous prime is 16850401. The next prime is 16850413. The reversal of 16850404 is 40405861.

It can be written as a sum of positive squares in only one way, i.e., 15618304 + 1232100 = 3952^2 + 1110^2 .

It is a super-2 number, since 2×16850404² = 567872229926432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16850401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2106297 + ... + 2106304.

Almost surely, 2^16850404 is an apocalyptic number.

It is an amenable number.

16850404 is a deficient number, since it is larger than the sum of its proper divisors (12637810).

16850404 is a wasteful number, since it uses less digits than its factorization.

16850404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212605 (or 4212603 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 16850404 is about 4104.9243598390. The cubic root of 16850404 is about 256.3717134268.

The spelling of 16850404 in words is "sixteen million, eight hundred fifty thousand, four hundred four".