263494470 has 32 divisors (see below), whose sum is σ = 665671680. Its totient is φ = 66566880.

The previous prime is 263494447. The next prime is 263494471. The reversal of 263494470 is 74494362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263494471) 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, 230566 + ... + 231705.

It is an arithmetic number, because the mean of its divisors is an integer number (20802240).

Almost surely, 2^263494470 is an apocalyptic number.

263494470 is an abundant number, since it is smaller than the sum of its proper divisors (402177210).

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

263494470 is a wasteful number, since it uses less digits than its factorization.

263494470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462300.

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 263494470 is about 16232.5127444891. The cubic root of 263494470 is about 641.0971334407.

The spelling of 263494470 in words is "two hundred sixty-three million, four hundred ninety-four thousand, four hundred seventy".