346420273 has 4 divisors (see below), whose sum is σ = 361482048. Its totient is φ = 331358500.

The previous prime is 346420253. The next prime is 346420279. The reversal of 346420273 is 372024643.

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, and also an emirpimes, since its reverse is a distinct semiprime: 372024643 = 191 ⋅1947773.

It is a cyclic number.

It is not a de Polignac number, because 346420273 - 2²¹ = 344323121 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346420279) 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, 7530853 + ... + 7530898.

It is an arithmetic number, because the mean of its divisors is an integer number (90370512).

Almost surely, 2^346420273 is an apocalyptic number.

It is an amenable number.

346420273 is a deficient number, since it is larger than the sum of its proper divisors (15061775).

346420273 is a wasteful number, since it uses less digits than its factorization.

346420273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15061774.

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 346420273 is about 18612.3688175364. The cubic root of 346420273 is about 702.3190251601.

The spelling of 346420273 in words is "three hundred forty-six million, four hundred twenty thousand, two hundred seventy-three".