264442136 has 32 divisors (see below), whose sum is σ = 567956640. Its totient is φ = 113073408.

The previous prime is 264442117. The next prime is 264442153. The reversal of 264442136 is 631244462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20426 + ... + 30758.

It is an arithmetic number, because the mean of its divisors is an integer number (17748645).

Almost surely, 2^264442136 is an apocalyptic number.

It is an amenable number.

264442136 is an abundant number, since it is smaller than the sum of its proper divisors (303514504).

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

264442136 is a wasteful number, since it uses less digits than its factorization.

264442136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10803 (or 10799 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

The square root of 264442136 is about 16261.6769122991. The cubic root of 264442136 is about 641.8647890899.

Adding to 264442136 its reverse (631244462), we get a palindrome (895686598).

The spelling of 264442136 in words is "two hundred sixty-four million, four hundred forty-two thousand, one hundred thirty-six".