20002942 has 8 divisors (see below), whose sum is σ = 30570696. Its totient is φ = 9812712.

The previous prime is 20002933. The next prime is 20002951. The reversal of 20002942 is 24920002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20002933) and next prime (20002951).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94248 + ... + 94459.

It is an arithmetic number, because the mean of its divisors is an integer number (3821337).

Almost surely, 2^20002942 is an apocalyptic number.

20002942 is a deficient number, since it is larger than the sum of its proper divisors (10567754).

20002942 is a wasteful number, since it uses less digits than its factorization.

20002942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188762.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 20002942 is about 4472.4648685037. The cubic root of 20002942 is about 271.4550707013.

Adding to 20002942 its reverse (24920002), we get a palindrome (44922944).

The spelling of 20002942 in words is "twenty million, two thousand, nine hundred forty-two".