346226399 has 4 divisors (see below), whose sum is σ = 346984464. Its totient is φ = 345468336.

The previous prime is 346226359. The next prime is 346226407. The reversal of 346226399 is 993622643.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346226399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346226339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378347 + ... + 379260.

It is an arithmetic number, because the mean of its divisors is an integer number (86746116).

Almost surely, 2^346226399 is an apocalyptic number.

346226399 is a deficient number, since it is larger than the sum of its proper divisors (758065).

346226399 is an equidigital number, since it uses as much as digits as its factorization.

346226399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758064.

The product of its digits is 419904, while the sum is 44.

The square root of 346226399 is about 18607.1598853775. The cubic root of 346226399 is about 702.1879831686.

The spelling of 346226399 in words is "three hundred forty-six million, two hundred twenty-six thousand, three hundred ninety-nine".