263660412 has 96 divisors (see below), whose sum is σ = 674085888. Its totient is φ = 79888384.

The previous prime is 263660401. The next prime is 263660413. The reversal of 263660412 is 214066362.

It is a self number, because there is not a number n which added to its sum of digits gives 263660412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263660413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1025788 + ... + 1026044.

It is an arithmetic number, because the mean of its divisors is an integer number (7021728).

Almost surely, 2^263660412 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 263660412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337042944).

263660412 is an abundant number, since it is smaller than the sum of its proper divisors (410425476).

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

263660412 is a wasteful number, since it uses less digits than its factorization.

263660412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 263660412 is about 16237.6233482613. The cubic root of 263660412 is about 641.2316873278.

It can be divided in two parts, 263 and 660412, that added together give a triangular number (660675 = T₁₁₄₉).

The spelling of 263660412 in words is "two hundred sixty-three million, six hundred sixty thousand, four hundred twelve".