263426460 has 48 divisors (see below), whose sum is σ = 804650112. Its totient is φ = 63860800.

The previous prime is 263426453. The next prime is 263426461. The reversal of 263426460 is 64624362.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263426461) 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, 198906 + ... + 200225.

It is an arithmetic number, because the mean of its divisors is an integer number (16763544).

Almost surely, 2^263426460 is an apocalyptic number.

263426460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263426460 is an abundant number, since it is smaller than the sum of its proper divisors (541223652).

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

263426460 is a wasteful number, since it uses less digits than its factorization.

263426460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399154 (or 399152 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 263426460 is about 16230.4177395408. The cubic root of 263426460 is about 641.0419712864.

The spelling of 263426460 in words is "two hundred sixty-three million, four hundred twenty-six thousand, four hundred sixty".