264266421 has 16 divisors (see below), whose sum is σ = 371332800. Its totient is φ = 166710528.

The previous prime is 264266419. The next prime is 264266423. The reversal of 264266421 is 124662462.

264266421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (264266419) and next prime (264266423).

It is not a de Polignac number, because 264266421 - 2¹ = 264266419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264266423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58765 + ... + 63101.

It is an arithmetic number, because the mean of its divisors is an integer number (23208300).

Almost surely, 2^264266421 is an apocalyptic number.

It is an amenable number.

264266421 is a deficient number, since it is larger than the sum of its proper divisors (107066379).

264266421 is a wasteful number, since it uses less digits than its factorization.

264266421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428.

The product of its digits is 27648, while the sum is 33.

The square root of 264266421 is about 16256.2732814135. The cubic root of 264266421 is about 641.7225900398.

The spelling of 264266421 in words is "two hundred sixty-four million, two hundred sixty-six thousand, four hundred twenty-one".