351240263 has 8 divisors (see below), whose sum is σ = 383740416. Its totient is φ = 318835000.

The previous prime is 351240221. The next prime is 351240269. The reversal of 351240263 is 362042153.

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

It is not a de Polignac number, because 351240263 - 2²⁴ = 334463047 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 (351240269) 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, 15863 + ... + 30888.

It is an arithmetic number, because the mean of its divisors is an integer number (47967552).

Almost surely, 2^351240263 is an apocalyptic number.

351240263 is a deficient number, since it is larger than the sum of its proper divisors (32500153).

351240263 is a wasteful number, since it uses less digits than its factorization.

351240263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47445.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 351240263 is about 18741.4050433792. The cubic root of 351240263 is about 705.5613208100.

The spelling of 351240263 in words is "three hundred fifty-one million, two hundred forty thousand, two hundred sixty-three".