20250042 has 8 divisors (see below), whose sum is σ = 40500096. Its totient is φ = 6750012.

The previous prime is 20250031. The next prime is 20250047. The reversal of 20250042 is 24005202.

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

20250042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20250047) 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, 1687498 + ... + 1687509.

It is an arithmetic number, because the mean of its divisors is an integer number (5062512).

Almost surely, 2^20250042 is an apocalyptic number.

20250042 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.

20250042 is a wasteful number, since it uses less digits than its factorization.

20250042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375012.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 20250042 is about 4500.0046666642. The cubic root of 20250042 is about 272.5682773668.

Adding to 20250042 its reverse (24005202), we get a palindrome (44255244).

The spelling of 20250042 in words is "twenty million, two hundred fifty thousand, forty-two".