263655432 has 64 divisors (see below), whose sum is σ = 734328000. Its totient is φ = 87651072.

The previous prime is 263655421. The next prime is 263655449. The reversal of 263655432 is 234556362.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92119 + ... + 94937.

It is an arithmetic number, because the mean of its divisors is an integer number (11473875).

Almost surely, 2^263655432 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 263655432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367164000).

263655432 is an abundant number, since it is smaller than the sum of its proper divisors (470672568).

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

263655432 is a wasteful number, since it uses less digits than its factorization.

263655432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3267 (or 3257 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 263655432 is about 16237.4699999723. The cubic root of 263655432 is about 641.2276501222.

The spelling of 263655432 in words is "two hundred sixty-three million, six hundred fifty-five thousand, four hundred thirty-two".