213648342 has 16 divisors (see below), whose sum is σ = 441080832. Its totient is φ = 68918760.

The previous prime is 213648341. The next prime is 213648427. The reversal of 213648342 is 243846312.

213648342 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-2 number, since 2×213648342² = 91291228078697928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213648341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574138 + ... + 574509.

It is an arithmetic number, because the mean of its divisors is an integer number (27567552).

Almost surely, 2^213648342 is an apocalyptic number.

213648342 is an abundant number, since it is smaller than the sum of its proper divisors (227432490).

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

213648342 is a wasteful number, since it uses less digits than its factorization.

213648342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148683.

The product of its digits is 27648, while the sum is 33.

The square root of 213648342 is about 14616.7144735060. The cubic root of 213648342 is about 597.8145885144.

The spelling of 213648342 in words is "two hundred thirteen million, six hundred forty-eight thousand, three hundred forty-two".