346838421 has 8 divisors (see below), whose sum is σ = 463456224. Its totient is φ = 230723120.

The previous prime is 346838417. The next prime is 346838423. The reversal of 346838421 is 124838643.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 346838421 - 2² = 346838417 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 346838421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346838423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124011 + ... + 126776.

It is an arithmetic number, because the mean of its divisors is an integer number (57932028).

Almost surely, 2^346838421 is an apocalyptic number.

It is an amenable number.

346838421 is a deficient number, since it is larger than the sum of its proper divisors (116617803).

346838421 is a wasteful number, since it uses less digits than its factorization.

346838421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251251.

The product of its digits is 110592, while the sum is 39.

The square root of 346838421 is about 18623.5984976051. The cubic root of 346838421 is about 702.6014905526.

The spelling of 346838421 in words is "three hundred forty-six million, eight hundred thirty-eight thousand, four hundred twenty-one".