16016404 has 24 divisors (see below), whose sum is σ = 29201256. Its totient is φ = 7680000.

The previous prime is 16016401. The next prime is 16016423. The reversal of 16016404 is 40461061.

It can be written as a sum of positive squares in 4 ways, for example, as 492804 + 15523600 = 702^2 + 3940^2 .

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16016401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9204 + ... + 10804.

It is an arithmetic number, because the mean of its divisors is an integer number (1216719).

Almost surely, 2^16016404 is an apocalyptic number.

It is an amenable number.

16016404 is a deficient number, since it is larger than the sum of its proper divisors (13184852).

16016404 is a wasteful number, since it uses less digits than its factorization.

16016404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707 (or 1705 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 16016404 is about 4002.0499747005. The cubic root of 16016404 is about 252.0702961695.

Adding to 16016404 its reverse (40461061), we get a palindrome (56477465).

It can be divided in two parts, 1601 and 6404, that multiplied together give a square (10252804 = 3202²).

The spelling of 16016404 in words is "sixteen million, sixteen thousand, four hundred four".