341328781 has 4 divisors (see below), whose sum is σ = 341594464. Its totient is φ = 341063100.

The previous prime is 341328739. The next prime is 341328829. The reversal of 341328781 is 187823143.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 341328781 - 2⁷ = 341328653 is a prime.

It is a super-2 number, since 2×341328781² = 233010673477891922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 341328781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (341328721) 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, 130905 + ... + 133486.

It is an arithmetic number, because the mean of its divisors is an integer number (85398616).

Almost surely, 2^341328781 is an apocalyptic number.

It is an amenable number.

341328781 is a deficient number, since it is larger than the sum of its proper divisors (265683).

341328781 is a wasteful number, since it uses less digits than its factorization.

341328781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265682.

The product of its digits is 32256, while the sum is 37.

The square root of 341328781 is about 18475.0854125225. The cubic root of 341328781 is about 698.8612648772.

The spelling of 341328781 in words is "three hundred forty-one million, three hundred twenty-eight thousand, seven hundred eighty-one".