263870469 has 12 divisors (see below), whose sum is σ = 381420000. Its totient is φ = 175787304.

The previous prime is 263870437. The next prime is 263870473. The reversal of 263870469 is 964078362.

263870469 is a `hidden beast` number, since 2 + 638 + 7 + 0 + 4 + 6 + 9 = 666.

263870469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 263870469 - 2⁵ = 263870437 is a prime.

It is a super-2 number, since 2×263870469² = 139255248820559922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263870069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3712 + ... + 23270.

It is an arithmetic number, because the mean of its divisors is an integer number (31785000).

Almost surely, 2^263870469 is an apocalyptic number.

It is an amenable number.

263870469 is a deficient number, since it is larger than the sum of its proper divisors (117549531).

263870469 is a wasteful number, since it uses less digits than its factorization.

263870469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21064 (or 21061 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 263870469 is about 16244.0902792369. The cubic root of 263870469 is about 641.4019308733.

The spelling of 263870469 in words is "two hundred sixty-three million, eight hundred seventy thousand, four hundred sixty-nine".