20050940 has 96 divisors (see below), whose sum is σ = 54190080. Its totient is φ = 6057216.

The previous prime is 20050937. The next prime is 20050951. The reversal of 20050940 is 4905002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41621 + ... + 42099.

It is an arithmetic number, because the mean of its divisors is an integer number (564480).

Almost surely, 2^20050940 is an apocalyptic number.

20050940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20050940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27095040).

20050940 is an abundant number, since it is smaller than the sum of its proper divisors (34139140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20050940 is a wasteful number, since it uses less digits than its factorization.

20050940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 20050940 is about 4477.8275982892. The cubic root of 20050940 is about 271.6720203360.

Adding to 20050940 its reverse (4905002), we get a palindrome (24955942).

The spelling of 20050940 in words is "twenty million, fifty thousand, nine hundred forty".