264016404 has 18 divisors (see below), whose sum is σ = 667374890. Its totient is φ = 88005456.

The previous prime is 264016397. The next prime is 264016427. The reversal of 264016404 is 404610462.

264016404 is a `hidden beast` number, since 2 + 640 + 16 + 4 + 0 + 4 = 666.

264016404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 256064004 + 7952400 = 16002^2 + 2820^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

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, 3666859 + ... + 3666930.

Almost surely, 2^264016404 is an apocalyptic number.

It is an amenable number.

264016404 is an abundant number, since it is smaller than the sum of its proper divisors (403358486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264016404 is a wasteful number, since it uses less digits than its factorization.

264016404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7333799 (or 7333794 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 264016404 is about 16248.5815996351. The cubic root of 264016404 is about 641.5201526919.

Adding to 264016404 its reverse (404610462), we get a palindrome (668626866).

It can be divided in two parts, 2640 and 16404, that added together give a square (19044 = 138²).

The spelling of 264016404 in words is "two hundred sixty-four million, sixteen thousand, four hundred four".