214346391 has 32 divisors (see below), whose sum is σ = 344947200. Its totient is φ = 115655040.

The previous prime is 214346389. The next prime is 214346437. The reversal of 214346391 is 193643412.

It is not a de Polignac number, because 214346391 - 2¹ = 214346389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214346311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154521 + ... + 155901.

It is an arithmetic number, because the mean of its divisors is an integer number (10779600).

Almost surely, 2^214346391 is an apocalyptic number.

214346391 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

214346391 is a deficient number, since it is larger than the sum of its proper divisors (130600809).

214346391 is a wasteful number, since it uses less digits than its factorization.

214346391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799.

The product of its digits is 15552, while the sum is 33.

The square root of 214346391 is about 14640.5734518836. The cubic root of 214346391 is about 598.4649566412.

The spelling of 214346391 in words is "two hundred fourteen million, three hundred forty-six thousand, three hundred ninety-one".