213406376 has 16 divisors (see below), whose sum is σ = 403679700. Its totient is φ = 105758464.

The previous prime is 213406339. The next prime is 213406379. The reversal of 213406376 is 673604312.

It can be written as a sum of positive squares in 2 ways, for example, as 124858276 + 88548100 = 11174^2 + 9410^2 .

It is not an unprimeable number, because it can be changed into a prime (213406379) 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, 117131 + ... + 118938.

Almost surely, 2^213406376 is an apocalyptic number.

It is an amenable number.

213406376 is a deficient number, since it is larger than the sum of its proper divisors (190273324).

213406376 is a wasteful number, since it uses less digits than its factorization.

213406376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236188 (or 236184 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 213406376 is about 14608.4350975729. The cubic root of 213406376 is about 597.5888196247.

The spelling of 213406376 in words is "two hundred thirteen million, four hundred six thousand, three hundred seventy-six".