20240580 has 24 divisors (see below), whose sum is σ = 56673792. Its totient is φ = 5397472.

The previous prime is 20240543. The next prime is 20240581. The reversal of 20240580 is 8504202.

It is not an unprimeable number, because it can be changed into a prime (20240581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168612 + ... + 168731.

It is an arithmetic number, because the mean of its divisors is an integer number (2361408).

Almost surely, 2^20240580 is an apocalyptic number.

20240580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20240580 is an abundant number, since it is smaller than the sum of its proper divisors (36433212).

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

20240580 is a wasteful number, since it uses less digits than its factorization.

20240580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337355 (or 337353 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 20240580 is about 4498.9532115816. The cubic root of 20240580 is about 272.5258174905.

Adding to 20240580 its reverse (8504202), we get a palindrome (28744782).

The spelling of 20240580 in words is "twenty million, two hundred forty thousand, five hundred eighty".