264701440 has 40 divisors (see below), whose sum is σ = 634669200. Its totient is φ = 105879552.

The previous prime is 264701413. The next prime is 264701443. The reversal of 264701440 is 44107462.

It is a tau number, because it is divible by the number of its divisors (40).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 264701399 and 264701408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264701443) 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 3 ways as a sum of consecutive naturals, for example, 49140 + ... + 54259.

It is an arithmetic number, because the mean of its divisors is an integer number (15866730).

Almost surely, 2^264701440 is an apocalyptic number.

264701440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264701440 is an abundant number, since it is smaller than the sum of its proper divisors (369967760).

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

264701440 is an equidigital number, since it uses as much as digits as its factorization.

264701440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103422 (or 103406 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 264701440 is about 16269.6478142583. The cubic root of 264701440 is about 642.0745183184.

The spelling of 264701440 in words is "two hundred sixty-four million, seven hundred one thousand, four hundred forty".