16286404 has 6 divisors (see below), whose sum is σ = 28501214. Its totient is φ = 8143200.

The previous prime is 16286383. The next prime is 16286411. The reversal of 16286404 is 40468261.

It can be written as a sum of positive squares in only one way, i.e., 16016004 + 270400 = 4002^2 + 520^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2035797 + ... + 2035804.

Almost surely, 2^16286404 is an apocalyptic number.

It is an amenable number.

16286404 is a deficient number, since it is larger than the sum of its proper divisors (12214810).

16286404 is a wasteful number, since it uses less digits than its factorization.

16286404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071605 (or 4071603 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 16286404 is about 4035.6417085762. The cubic root of 16286404 is about 253.4788537591.

The spelling of 16286404 in words is "sixteen million, two hundred eighty-six thousand, four hundred four".