213010442 has 16 divisors (see below), whose sum is σ = 339075720. Its totient is φ = 100013568.

The previous prime is 213010417. The next prime is 213010451. The reversal of 213010442 is 244010312.

It can be written as a sum of positive squares in 4 ways, for example, as 207388801 + 5621641 = 14401^2 + 2371^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 213010442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8684 + ... + 22392.

Almost surely, 2^213010442 is an apocalyptic number.

213010442 is a deficient number, since it is larger than the sum of its proper divisors (126065278).

213010442 is a wasteful number, since it uses less digits than its factorization.

213010442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14185.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 213010442 is about 14594.8772519676. The cubic root of 213010442 is about 597.2190209141.

Adding to 213010442 its reverse (244010312), we get a palindrome (457020754).

The spelling of 213010442 in words is "two hundred thirteen million, ten thousand, four hundred forty-two".