264505420 has 24 divisors (see below), whose sum is σ = 561191904. Its totient is φ = 104710656.

The previous prime is 264505393. The next prime is 264505421. The reversal of 264505420 is 24505462.

It is not an unprimeable number, because it can be changed into a prime (264505421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66232 + ... + 70111.

It is an arithmetic number, because the mean of its divisors is an integer number (23382996).

Almost surely, 2^264505420 is an apocalyptic number.

264505420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264505420 is an abundant number, since it is smaller than the sum of its proper divisors (296686484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264505420 is a wasteful number, since it uses less digits than its factorization.

264505420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136449 (or 136447 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 264505420 is about 16263.6225976871. The cubic root of 264505420 is about 641.9159868454.

The spelling of 264505420 in words is "two hundred sixty-four million, five hundred five thousand, four hundred twenty".