20958342 has 8 divisors (see below), whose sum is σ = 41916696. Its totient is φ = 6986112.

The previous prime is 20958341. The next prime is 20958361. The reversal of 20958342 is 24385902.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

20958342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20958341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1746523 + ... + 1746534.

It is an arithmetic number, because the mean of its divisors is an integer number (5239587).

Almost surely, 2^20958342 is an apocalyptic number.

20958342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20958342 is a wasteful number, since it uses less digits than its factorization.

20958342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493062.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 20958342 is about 4578.0281781571. The cubic root of 20958342 is about 275.7098662982.

The spelling of 20958342 in words is "twenty million, nine hundred fifty-eight thousand, three hundred forty-two".