263225344 has 64 divisors (see below), whose sum is σ = 546561900. Its totient is φ = 126615552.

The previous prime is 263225327. The next prime is 263225357. The reversal of 263225344 is 443522362.

It can be written as a sum of positive squares in 2 ways, for example, as 256000000 + 7225344 = 16000^2 + 2688^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 950134 + ... + 950410.

Almost surely, 2^263225344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263225344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273280950).

263225344 is an abundant number, since it is smaller than the sum of its proper divisors (283336556).

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

263225344 is an frugal number, since it uses more digits than its factorization.

263225344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 308 counting only the distinct ones).

The product of its digits is 34560, while the sum is 31.

The square root of 263225344 is about 16224.2209057939. The cubic root of 263225344 is about 640.8787927653.

The spelling of 263225344 in words is "two hundred sixty-three million, two hundred twenty-five thousand, three hundred forty-four".