20052940 has 12 divisors (see below), whose sum is σ = 42111216. Its totient is φ = 8021168.

The previous prime is 20052937. The next prime is 20052947. The reversal of 20052940 is 4925002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20052947) 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, 501304 + ... + 501343.

It is an arithmetic number, because the mean of its divisors is an integer number (3509268).

Almost surely, 2^20052940 is an apocalyptic number.

20052940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20052940 is an abundant number, since it is smaller than the sum of its proper divisors (22058276).

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

20052940 is a wasteful number, since it uses less digits than its factorization.

20052940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002656 (or 1002654 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 20052940 is about 4478.0509152979. The cubic root of 20052940 is about 271.6810527634.

Adding to 20052940 its reverse (4925002), we get a palindrome (24977942).

The spelling of 20052940 in words is "twenty million, fifty-two thousand, nine hundred forty".