346821422 has 4 divisors (see below), whose sum is σ = 520232136. Its totient is φ = 173410710.

The previous prime is 346821389. The next prime is 346821427. The reversal of 346821422 is 224128643.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346821427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86705354 + ... + 86705357.

It is an arithmetic number, because the mean of its divisors is an integer number (130058034).

Almost surely, 2^346821422 is an apocalyptic number.

346821422 is a deficient number, since it is larger than the sum of its proper divisors (173410714).

346821422 is a wasteful number, since it uses less digits than its factorization.

346821422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173410713.

The product of its digits is 18432, while the sum is 32.

The square root of 346821422 is about 18623.1421086776. The cubic root of 346821422 is about 702.5900118955.

The spelling of 346821422 in words is "three hundred forty-six million, eight hundred twenty-one thousand, four hundred twenty-two".