263878498 has 16 divisors (see below), whose sum is σ = 448701120. Its totient is φ = 115379856.

The previous prime is 263878493. The next prime is 263878507. The reversal of 263878498 is 894878362.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (263878493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266590 + ... + 267577.

It is an arithmetic number, because the mean of its divisors is an integer number (28043820).

Almost surely, 2^263878498 is an apocalyptic number.

263878498 is a deficient number, since it is larger than the sum of its proper divisors (184822622).

263878498 is a wasteful number, since it uses less digits than its factorization.

263878498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534201.

The product of its digits is 4644864, while the sum is 55.

The square root of 263878498 is about 16244.3374133881. The cubic root of 263878498 is about 641.4084362923.

The spelling of 263878498 in words is "two hundred sixty-three million, eight hundred seventy-eight thousand, four hundred ninety-eight".