346808881 has 32 divisors (see below), whose sum is σ = 397267200. Its totient is φ = 301086720.

The previous prime is 346808879. The next prime is 346808887. The reversal of 346808881 is 188808643.

It is a 3-Lehmer number, since φ(346808881) divides (346808881-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 346808881 - 2¹ = 346808879 is a prime.

It is a super-2 number, since 2×346808881² = 240552799880944322, which contains 22 as substring.

It is a deceptive number, since it divides R_346808880.

It is not an unprimeable number, because it can be changed into a prime (346808887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1438921 + ... + 1439161.

It is an arithmetic number, because the mean of its divisors is an integer number (12414600).

It is a Poulet number, since it divides 2^346808880-1.

Almost surely, 2^346808881 is an apocalyptic number.

It is an amenable number.

346808881 is a deficient number, since it is larger than the sum of its proper divisors (50458319).

346808881 is a wasteful number, since it uses less digits than its factorization.

346808881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409.

The product of its (nonzero) digits is 294912, while the sum is 46.

The square root of 346808881 is about 18622.8054009056. The cubic root of 346808881 is about 702.5815432841.

The spelling of 346808881 in words is "three hundred forty-six million, eight hundred eight thousand, eight hundred eighty-one".