213040030 has 64 divisors (see below), whose sum is σ = 461749248. Its totient is φ = 69189120.

The previous prime is 213040021. The next prime is 213040031. The reversal of 213040030 is 30040312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213040031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 181345 + ... + 182515.

It is an arithmetic number, because the mean of its divisors is an integer number (7214832).

Almost surely, 2^213040030 is an apocalyptic number.

213040030 is an abundant number, since it is smaller than the sum of its proper divisors (248709218).

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

213040030 is a wasteful number, since it uses less digits than its factorization.

213040030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 213040030 is about 14595.8908601017. The cubic root of 213040030 is about 597.2466716686.

Adding to 213040030 its reverse (30040312), we get a palindrome (243080342).

The spelling of 213040030 in words is "two hundred thirteen million, forty thousand, thirty".