20580620 has 24 divisors (see below), whose sum is σ = 43328544. Its totient is φ = 8211456.

The previous prime is 20580619. The next prime is 20580631. The reversal of 20580620 is 2608502.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8684 + ... + 10796.

It is an arithmetic number, because the mean of its divisors is an integer number (1805356).

Almost surely, 2^20580620 is an apocalyptic number.

20580620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20580620 is an abundant number, since it is smaller than the sum of its proper divisors (22747924).

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

20580620 is a wasteful number, since it uses less digits than its factorization.

20580620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609 (or 2607 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 20580620 is about 4536.5868227115. The cubic root of 20580620 is about 274.0434868020.

The spelling of 20580620 in words is "twenty million, five hundred eighty thousand, six hundred twenty".