213440130 has 32 divisors (see below), whose sum is σ = 569174400. Its totient is φ = 56917296.

The previous prime is 213440119. The next prime is 213440131. The reversal of 213440130 is 31044312.

213440130 is a `hidden beast` number, since 213 + 440 + 13 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (213440131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394990 + ... + 395529.

It is an arithmetic number, because the mean of its divisors is an integer number (17786700).

Almost surely, 2^213440130 is an apocalyptic number.

213440130 is an abundant number, since it is smaller than the sum of its proper divisors (355734270).

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

213440130 is a wasteful number, since it uses less digits than its factorization.

213440130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790535 (or 790529 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 213440130 is about 14609.5903433327. The cubic root of 213440130 is about 597.6203243842.

Adding to 213440130 its reverse (31044312), we get a palindrome (244484442).

The spelling of 213440130 in words is "two hundred thirteen million, four hundred forty thousand, one hundred thirty".