346622421 has 8 divisors (see below), whose sum is σ = 464717344. Its totient is φ = 229804560.

The previous prime is 346622411. The next prime is 346622429. The reversal of 346622421 is 124226643.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 346622421 - 2⁵ = 346622389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346622429) 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 in 7 ways as a sum of consecutive naturals, for example, 318631 + ... + 319716.

It is an arithmetic number, because the mean of its divisors is an integer number (58089668).

Almost surely, 2^346622421 is an apocalyptic number.

It is an amenable number.

346622421 is a deficient number, since it is larger than the sum of its proper divisors (118094923).

346622421 is a wasteful number, since it uses less digits than its factorization.

346622421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638531.

The product of its digits is 13824, while the sum is 30.

The square root of 346622421 is about 18617.7985003598. The cubic root of 346622421 is about 702.4556076016.

The spelling of 346622421 in words is "three hundred forty-six million, six hundred twenty-two thousand, four hundred twenty-one".