264042788 has 12 divisors (see below), whose sum is σ = 473345292. Its totient is φ = 128801280.

The previous prime is 264042781. The next prime is 264042803. The reversal of 264042788 is 887240462.

It can be written as a sum of positive squares in 2 ways, for example, as 138109504 + 125933284 = 11752^2 + 11222^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (264042781) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 804845 + ... + 805172.

It is an arithmetic number, because the mean of its divisors is an integer number (39445441).

Almost surely, 2^264042788 is an apocalyptic number.

It is an amenable number.

264042788 is a deficient number, since it is larger than the sum of its proper divisors (209302504).

264042788 is a wasteful number, since it uses less digits than its factorization.

264042788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610062 (or 1610060 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 264042788 is about 16249.3934656036. The cubic root of 264042788 is about 641.5415216974.

It can be divided in two parts, 26404 and 2788, that added together give a palindrome (29192).

The spelling of 264042788 in words is "two hundred sixty-four million, forty-two thousand, seven hundred eighty-eight".