351042391 has 8 divisors (see below), whose sum is σ = 401408000. Its totient is φ = 300730968.

The previous prime is 351042383. The next prime is 351042397. The reversal of 351042391 is 193240153.

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 351042391 - 2³ = 351042383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351042397) 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, 1450 + ... + 26536.

It is an arithmetic number, because the mean of its divisors is an integer number (50176000).

Almost surely, 2^351042391 is an apocalyptic number.

351042391 is a deficient number, since it is larger than the sum of its proper divisors (50365609).

351042391 is a wasteful number, since it uses less digits than its factorization.

351042391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27093.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 351042391 is about 18736.1252931336. The cubic root of 351042391 is about 705.4288027311.

The spelling of 351042391 in words is "three hundred fifty-one million, forty-two thousand, three hundred ninety-one".