264840416 has 24 divisors (see below), whose sum is σ = 552076560. Its totient is φ = 124630528.

The previous prime is 264840379. The next prime is 264840419. The reversal of 264840416 is 614048462.

It is a super-3 number, since 3×264840416³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264840419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242876 + ... + 243963.

It is an arithmetic number, because the mean of its divisors is an integer number (23003190).

Almost surely, 2^264840416 is an apocalyptic number.

It is an amenable number.

264840416 is an abundant number, since it is smaller than the sum of its proper divisors (287236144).

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

264840416 is a wasteful number, since it uses less digits than its factorization.

264840416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486866 (or 486858 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 264840416 is about 16273.9182743432. The cubic root of 264840416 is about 642.1868679605.

Adding to 264840416 its reverse (614048462), we get a palindrome (878888878).

The spelling of 264840416 in words is "two hundred sixty-four million, eight hundred forty thousand, four hundred sixteen".