20142950 has 12 divisors (see below), whose sum is σ = 37465980. Its totient is φ = 8057160.

The previous prime is 20142929. The next prime is 20142959. The reversal of 20142950 is 5924102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20142959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201380 + ... + 201479.

It is an arithmetic number, because the mean of its divisors is an integer number (3122165).

Almost surely, 2^20142950 is an apocalyptic number.

20142950 is a deficient number, since it is larger than the sum of its proper divisors (17323030).

20142950 is a wasteful number, since it uses less digits than its factorization.

20142950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402871 (or 402866 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20142950 is about 4488.0897941106. The cubic root of 20142950 is about 272.0869369593.

The spelling of 20142950 in words is "twenty million, one hundred forty-two thousand, nine hundred fifty".