20102242 has 8 divisors (see below), whose sum is σ = 30854736. Its totient is φ = 9817332.

The previous prime is 20102239. The next prime is 20102263. The reversal of 20102242 is 24220102.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116788 + ... + 116959.

It is an arithmetic number, because the mean of its divisors is an integer number (3856842).

Almost surely, 2^20102242 is an apocalyptic number.

20102242 is a deficient number, since it is larger than the sum of its proper divisors (10752494).

20102242 is a wasteful number, since it uses less digits than its factorization.

20102242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233792.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 20102242 is about 4483.5523862223. The cubic root of 20102242 is about 271.9035215069.

Adding to 20102242 its reverse (24220102), we get a palindrome (44322344).

It can be divided in two parts, 20102 and 242, that multiplied together give a palindrome (4864684).

The spelling of 20102242 in words is "twenty million, one hundred two thousand, two hundred forty-two".