213882746 has 72 divisors (see below), whose sum is σ = 434755188. Its totient is φ = 78355200.

The previous prime is 213882737. The next prime is 213882749. The reversal of 213882746 is 647288312.

It can be written as a sum of positive squares in 2 ways, for example, as 202920025 + 10962721 = 14245^2 + 3311^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213882749) 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 35 ways as a sum of consecutive naturals, for example, 201056 + ... + 202116.

Almost surely, 2^213882746 is an apocalyptic number.

213882746 is an abundant number, since it is smaller than the sum of its proper divisors (220872442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213882746 is a wasteful number, since it uses less digits than its factorization.

213882746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116 (or 1098 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 213882746 is about 14624.7306299979. The cubic root of 213882746 is about 598.0331391053.

The spelling of 213882746 in words is "two hundred thirteen million, eight hundred eighty-two thousand, seven hundred forty-six".