264488440 has 32 divisors (see below), whose sum is σ = 597242160. Its totient is φ = 105414400.

The previous prime is 264488423. The next prime is 264488467. The reversal of 264488440 is 44884462.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 264488393 and 264488402.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 526 + ... + 23005.

Almost surely, 2^264488440 is an apocalyptic number.

264488440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264488440 is an abundant number, since it is smaller than the sum of its proper divisors (332753720).

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

264488440 is a wasteful number, since it uses less digits than its factorization.

264488440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23823 (or 23819 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 40.

The square root of 264488440 is about 16263.1005653904. The cubic root of 264488440 is about 641.9022505589.

The spelling of 264488440 in words is "two hundred sixty-four million, four hundred eighty-eight thousand, four hundred forty".