264004401 has 32 divisors (see below), whose sum is σ = 372833280. Its totient is φ = 165945600.

The previous prime is 264004399. The next prime is 264004421. The reversal of 264004401 is 104400462.

It is not a de Polignac number, because 264004401 - 2¹ = 264004399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264004421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 981295 + ... + 981563.

It is an arithmetic number, because the mean of its divisors is an integer number (11651040).

Almost surely, 2^264004401 is an apocalyptic number.

It is an amenable number.

264004401 is a deficient number, since it is larger than the sum of its proper divisors (108828879).

264004401 is a wasteful number, since it uses less digits than its factorization.

264004401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 264004401 is about 16248.2122401204. The cubic root of 264004401 is about 641.5104307164.

Adding to 264004401 its reverse (104400462), we get a palindrome (368404863).

The spelling of 264004401 in words is "two hundred sixty-four million, four thousand, four hundred one".