213430042 has 16 divisors (see below), whose sum is σ = 366194880. Its totient is φ = 91391328.

The previous prime is 213430037. The next prime is 213430057. The reversal of 213430042 is 240034312.

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, 12133 + ... + 23959.

It is an arithmetic number, because the mean of its divisors is an integer number (22887180).

Almost surely, 2^213430042 is an apocalyptic number.

213430042 is a deficient number, since it is larger than the sum of its proper divisors (152764838).

213430042 is a wasteful number, since it uses less digits than its factorization.

213430042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13125.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 213430042 is about 14609.2450865881. The cubic root of 213430042 is about 597.6109089588.

Adding to 213430042 its reverse (240034312), we get a palindrome (453464354).

The spelling of 213430042 in words is "two hundred thirteen million, four hundred thirty thousand, forty-two".