264211403 has 4 divisors (see below), whose sum is σ = 265580568. Its totient is φ = 262842240.

The previous prime is 264211391. The next prime is 264211417. The reversal of 264211403 is 304112462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 264211403 - 2¹⁶ = 264145867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264211463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684293 + ... + 684678.

It is an arithmetic number, because the mean of its divisors is an integer number (66395142).

Almost surely, 2^264211403 is an apocalyptic number.

264211403 is a deficient number, since it is larger than the sum of its proper divisors (1369165).

264211403 is a wasteful number, since it uses less digits than its factorization.

264211403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369164.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 264211403 is about 16254.5809850639. The cubic root of 264211403 is about 641.6780532377.

Adding to 264211403 its reverse (304112462), we get a palindrome (568323865).

The spelling of 264211403 in words is "two hundred sixty-four million, two hundred eleven thousand, four hundred three".