263667480 has 64 divisors (see below), whose sum is σ = 793290240. Its totient is φ = 70108032.

The previous prime is 263667461. The next prime is 263667487. The reversal of 263667480 is 84766362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263667487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41047 + ... + 47033.

It is an arithmetic number, because the mean of its divisors is an integer number (12395160).

Almost surely, 2^263667480 is an apocalyptic number.

263667480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263667480 is an abundant number, since it is smaller than the sum of its proper divisors (529622760).

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

263667480 is a wasteful number, since it uses less digits than its factorization.

263667480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6368 (or 6364 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 263667480 is about 16237.8409894912. The cubic root of 263667480 is about 641.2374171541.

The spelling of 263667480 in words is "two hundred sixty-three million, six hundred sixty-seven thousand, four hundred eighty".