264781838 has 16 divisors (see below), whose sum is σ = 400207200. Its totient is φ = 131383296.

The previous prime is 264781837. The next prime is 264781849. The reversal of 264781838 is 838187462.

It is a junction number, because it is equal to n+sod(n) for n = 264781792 and 264781801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264781837) 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, 229070 + ... + 230222.

It is an arithmetic number, because the mean of its divisors is an integer number (25012950).

Almost surely, 2^264781838 is an apocalyptic number.

264781838 is a deficient number, since it is larger than the sum of its proper divisors (135425362).

264781838 is a wasteful number, since it uses less digits than its factorization.

264781838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931.

The product of its digits is 516096, while the sum is 47.

The square root of 264781838 is about 16272.1184238562. The cubic root of 264781838 is about 642.1395176898.

The spelling of 264781838 in words is "two hundred sixty-four million, seven hundred eighty-one thousand, eight hundred thirty-eight".