20480001 has 16 divisors (see below), whose sum is σ = 27832896. Its totient is φ = 13392896.

The previous prime is 20479999. The next prime is 20480011. The reversal of 20480001 is 10008402.

It is a cyclic number.

It is not a de Polignac number, because 20480001 - 2¹ = 20479999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20480011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57841 + ... + 58193.

It is an arithmetic number, because the mean of its divisors is an integer number (1739556).

It is a Proth number, since it is equal to 625 ⋅ 2¹⁵ + 1 and 625 < 2¹⁵.

Almost surely, 2^20480001 is an apocalyptic number.

It is an amenable number.

20480001 is a deficient number, since it is larger than the sum of its proper divisors (7352895).

20480001 is a wasteful number, since it uses less digits than its factorization.

20480001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 20480001 is about 4525.4835100793. The cubic root of 20480001 is about 273.5961559213.

Adding to 20480001 its reverse (10008402), we get a palindrome (30488403).

The spelling of 20480001 in words is "twenty million, four hundred eighty thousand, one".