334042391 has 4 divisors (see below), whose sum is σ = 344817984. Its totient is φ = 323266800.

The previous prime is 334042343. The next prime is 334042393. The reversal of 334042391 is 193240433.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 334042391 - 2¹⁸ = 333780247 is a prime.

It is a super-2 number, since 2×334042391² = 223168637969993762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (334042393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5387750 + ... + 5387811.

It is an arithmetic number, because the mean of its divisors is an integer number (86204496).

Almost surely, 2^334042391 is an apocalyptic number.

334042391 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

334042391 is a deficient number, since it is larger than the sum of its proper divisors (10775593).

334042391 is a wasteful number, since it uses less digits than its factorization.

334042391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10775592.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 334042391 is about 18276.8266118602. The cubic root of 334042391 is about 693.8525592931.

It can be divided in two parts, 334042 and 391, that added together give a palindrome (334433).

The spelling of 334042391 in words is "three hundred thirty-four million, forty-two thousand, three hundred ninety-one".