213339942 has 96 divisors (see below), whose sum is σ = 506563200. Its totient is φ = 64665216.

The previous prime is 213339941. The next prime is 213339943. The reversal of 213339942 is 249933312.

It is an interprime number because it is at equal distance from previous prime (213339941) and next prime (213339943).

It is a junction number, because it is equal to n+sod(n) for n = 213339897 and 213339906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213339941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1308753 + ... + 1308915.

It is an arithmetic number, because the mean of its divisors is an integer number (5276700).

Almost surely, 2^213339942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213339942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253281600).

213339942 is an abundant number, since it is smaller than the sum of its proper divisors (293223258).

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

213339942 is a wasteful number, since it uses less digits than its factorization.

213339942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 319 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 213339942 is about 14606.1610972904. The cubic root of 213339942 is about 597.5268028335.

The spelling of 213339942 in words is "two hundred thirteen million, three hundred thirty-nine thousand, nine hundred forty-two".