264461421 has 16 divisors (see below), whose sum is σ = 403238528. Its totient is φ = 151027200.

The previous prime is 264461389. The next prime is 264461443. The reversal of 264461421 is 124164462.

It is a happy number.

It is not a de Polignac number, because 264461421 - 2⁵ = 264461389 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 (264461221) 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 15 ways as a sum of consecutive naturals, for example, 45141 + ... + 50661.

It is an arithmetic number, because the mean of its divisors is an integer number (25202408).

Almost surely, 2^264461421 is an apocalyptic number.

264461421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

264461421 is a deficient number, since it is larger than the sum of its proper divisors (138777107).

264461421 is a wasteful number, since it uses less digits than its factorization.

264461421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7812.

The product of its digits is 9216, while the sum is 30.

The square root of 264461421 is about 16262.2698600165. The cubic root of 264461421 is about 641.8803918247.

The spelling of 264461421 in words is "two hundred sixty-four million, four hundred sixty-one thousand, four hundred twenty-one".