263483940 has 24 divisors (see below), whose sum is σ = 737755200. Its totient is φ = 70262368.

The previous prime is 263483939. The next prime is 263483959. The reversal of 263483940 is 49384362.

263483940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2195640 + ... + 2195759.

It is an arithmetic number, because the mean of its divisors is an integer number (30739800).

Almost surely, 2^263483940 is an apocalyptic number.

263483940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263483940 is an abundant number, since it is smaller than the sum of its proper divisors (474271260).

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

263483940 is a wasteful number, since it uses less digits than its factorization.

263483940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391411 (or 4391409 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 263483940 is about 16232.1883922039. The cubic root of 263483940 is about 641.0885932960.

The spelling of 263483940 in words is "two hundred sixty-three million, four hundred eighty-three thousand, nine hundred forty".