16405828 has 24 divisors (see below), whose sum is σ = 29623104. Its totient is φ = 7946400.

The previous prime is 16405819. The next prime is 16405847. The reversal of 16405828 is 82850461.

16405828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16405793 and 16405802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16851 + ... + 17797.

It is an arithmetic number, because the mean of its divisors is an integer number (1234296).

Almost surely, 2^16405828 is an apocalyptic number.

It is an amenable number.

16405828 is a deficient number, since it is larger than the sum of its proper divisors (13217276).

16405828 is a wasteful number, since it uses less digits than its factorization.

16405828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 16405828 is about 4050.4108433590. The cubic root of 16405828 is about 254.0969105475.

The spelling of 16405828 in words is "sixteen million, four hundred five thousand, eight hundred twenty-eight".