213342342 has 16 divisors (see below), whose sum is σ = 445236480. Its totient is φ = 68022152.

The previous prime is 213342329. The next prime is 213342359. The reversal of 213342342 is 243243312.

213342342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×213342342⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

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, 772842 + ... + 773117.

It is an arithmetic number, because the mean of its divisors is an integer number (27827280).

Almost surely, 2^213342342 is an apocalyptic number.

213342342 is an abundant number, since it is smaller than the sum of its proper divisors (231894138).

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

213342342 is a wasteful number, since it uses less digits than its factorization.

213342342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545987.

The product of its digits is 3456, while the sum is 24.

The square root of 213342342 is about 14606.2432541705. The cubic root of 213342342 is about 597.5290434812.

Adding to 213342342 its reverse (243243312), we get a palindrome (456585654).

The spelling of 213342342 in words is "two hundred thirteen million, three hundred forty-two thousand, three hundred forty-two".