20481099 has 16 divisors (see below), whose sum is σ = 28369824. Its totient is φ = 13132800.

The previous prime is 20481079. The next prime is 20481193. The reversal of 20481099 is 99018402.

It is not a de Polignac number, because 20481099 - 2⁵ = 20481067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20481059) 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, 7839 + ... + 10119.

It is an arithmetic number, because the mean of its divisors is an integer number (1773114).

Almost surely, 2^20481099 is an apocalyptic number.

20481099 is a deficient number, since it is larger than the sum of its proper divisors (7888725).

20481099 is a wasteful number, since it uses less digits than its factorization.

20481099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 20481099 is about 4525.6048214576. The cubic root of 20481099 is about 273.6010452963.

The spelling of 20481099 in words is "twenty million, four hundred eighty-one thousand, ninety-nine".