20190342 has 8 divisors (see below), whose sum is σ = 40380696. Its totient is φ = 6730112.

The previous prime is 20190323. The next prime is 20190347. The reversal of 20190342 is 24309102.

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

20190342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20190347) 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, 1682523 + ... + 1682534.

It is an arithmetic number, because the mean of its divisors is an integer number (5047587).

Almost surely, 2^20190342 is an apocalyptic number.

20190342 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.

20190342 is a wasteful number, since it uses less digits than its factorization.

20190342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365062.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 20190342 is about 4493.3664439927. The cubic root of 20190342 is about 272.3001570432.

Adding to 20190342 its reverse (24309102), we get a palindrome (44499444).

The spelling of 20190342 in words is "twenty million, one hundred ninety thousand, three hundred forty-two".