263370493 has 8 divisors (see below), whose sum is σ = 274984128. Its totient is φ = 251770464.

The previous prime is 263370479. The next prime is 263370509. The reversal of 263370493 is 394073362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 263370493 - 2⁵ = 263370461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263370193) 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, 71505 + ... + 75097.

It is an arithmetic number, because the mean of its divisors is an integer number (34373016).

Almost surely, 2^263370493 is an apocalyptic number.

263370493 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

263370493 is a deficient number, since it is larger than the sum of its proper divisors (11613635).

263370493 is a wasteful number, since it uses less digits than its factorization.

263370493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6803.

The product of its (nonzero) digits is 81648, while the sum is 37.

The square root of 263370493 is about 16228.6935087209. The cubic root of 263370493 is about 640.9965699536.

The spelling of 263370493 in words is "two hundred sixty-three million, three hundred seventy thousand, four hundred ninety-three".