264301421 has 4 divisors (see below), whose sum is σ = 264350844. Its totient is φ = 264252000.

The previous prime is 264301417. The next prime is 264301423. The reversal of 264301421 is 124103462.

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

It can be written as a sum of positive squares in 2 ways, for example, as 203632900 + 60668521 = 14270^2 + 7789^2 .

It is a cyclic number.

It is not a de Polignac number, because 264301421 - 2² = 264301417 is a prime.

It is a super-2 number, since 2×264301421² = 139710482285238482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264301423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15560 + ... + 27761.

It is an arithmetic number, because the mean of its divisors is an integer number (66087711).

Almost surely, 2^264301421 is an apocalyptic number.

It is an amenable number.

264301421 is a deficient number, since it is larger than the sum of its proper divisors (49423).

264301421 is an equidigital number, since it uses as much as digits as its factorization.

264301421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49422.

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

The square root of 264301421 is about 16257.3497532654. The cubic root of 264301421 is about 641.7509191519.

Adding to 264301421 its reverse (124103462), we get a palindrome (388404883).

The spelling of 264301421 in words is "two hundred sixty-four million, three hundred one thousand, four hundred twenty-one".