213456334 has 32 divisors (see below), whose sum is σ = 401526720. Its totient is φ = 82847232.

The previous prime is 213456319. The next prime is 213456379. The reversal of 213456334 is 433654312.

It is a junction number, because it is equal to n+sod(n) for n = 213456296 and 213456305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1419 + ... + 20710.

It is an arithmetic number, because the mean of its divisors is an integer number (12547710).

Almost surely, 2^213456334 is an apocalyptic number.

213456334 is a deficient number, since it is larger than the sum of its proper divisors (188070386).

213456334 is a wasteful number, since it uses less digits than its factorization.

213456334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22204.

The product of its digits is 25920, while the sum is 31.

The square root of 213456334 is about 14610.1449000344. The cubic root of 213456334 is about 597.6354474301.

The spelling of 213456334 in words is "two hundred thirteen million, four hundred fifty-six thousand, three hundred thirty-four".