20580070 has 16 divisors (see below), whose sum is σ = 42336288. Its totient is φ = 7056000.

The previous prime is 20580067. The next prime is 20580089. The reversal of 20580070 is 7008502.

It is a congruent 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, 146931 + ... + 147070.

It is an arithmetic number, because the mean of its divisors is an integer number (2646018).

Almost surely, 2^20580070 is an apocalyptic number.

20580070 is an abundant number, since it is smaller than the sum of its proper divisors (21756218).

20580070 is a wasteful number, since it uses less digits than its factorization.

20580070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294015.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 20580070 is about 4536.5262040464. The cubic root of 20580070 is about 274.0410455852.

Adding to 20580070 its reverse (7008502), we get a palindrome (27588572).

The spelling of 20580070 in words is "twenty million, five hundred eighty thousand, seventy".