264349818 has 40 divisors (see below), whose sum is σ = 593343828. Its totient is φ = 87967296.

The previous prime is 264349817. The next prime is 264349823. The reversal of 264349818 is 818943462.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 263315529 + 1034289 = 16227^2 + 1017^2 .

It is not an unprimeable number, because it can be changed into a prime (264349817) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 137230 + ... + 139142.

Almost surely, 2^264349818 is an apocalyptic number.

264349818 is an abundant number, since it is smaller than the sum of its proper divisors (328994010).

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

264349818 is a wasteful number, since it uses less digits than its factorization.

264349818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780 (or 2771 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 264349818 is about 16258.8381503722. The cubic root of 264349818 is about 641.7900877188.

The spelling of 264349818 in words is "two hundred sixty-four million, three hundred forty-nine thousand, eight hundred eighteen".