213403230 has 24 divisors (see below), whose sum is σ = 554848632. Its totient is φ = 56907504.

The previous prime is 213403217. The next prime is 213403243. The reversal of 213403230 is 32304312.

213403230 is a `hidden beast` number, since 2 + 1 + 340 + 323 + 0 = 666.

213403230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213403217) and next prime (213403243).

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1185484 + ... + 1185663.

It is an arithmetic number, because the mean of its divisors is an integer number (23118693).

Almost surely, 2^213403230 is an apocalyptic number.

213403230 is an abundant number, since it is smaller than the sum of its proper divisors (341445402).

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

213403230 is a wasteful number, since it uses less digits than its factorization.

213403230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371160 (or 2371157 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 213403230 is about 14608.3274196603. The cubic root of 213403230 is about 597.5858830931.

Adding to 213403230 its reverse (32304312), we get a palindrome (245707542).

The spelling of 213403230 in words is "two hundred thirteen million, four hundred three thousand, two hundred thirty".