263010240 has 280 divisors, whose sum is σ = 955212720. Its totient is φ = 68677632.

The previous prime is 263010227. The next prime is 263010263. The reversal of 263010240 is 42010362.

It is a happy number.

263010240 is a `hidden beast` number, since 2 + 630 + 10 + 24 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1892091 + ... + 1892229.

It is an arithmetic number, because the mean of its divisors is an integer number (3411474).

Almost surely, 2^263010240 is an apocalyptic number.

263010240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263010240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (477606360).

263010240 is an abundant number, since it is smaller than the sum of its proper divisors (692202480).

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

263010240 is a wasteful number, since it uses less digits than its factorization.

263010240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 263010240 is about 16217.5904498788. The cubic root of 263010240 is about 640.7041728522.

The spelling of 263010240 in words is "two hundred sixty-three million, ten thousand, two hundred forty".