20245089 has 16 divisors (see below), whose sum is σ = 28601600. Its totient is φ = 12702096.

The previous prime is 20245081. The next prime is 20245123. The reversal of 20245089 is 98054202.

It is not a de Polignac number, because 20245089 - 2³ = 20245081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20245081) 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, 8202 + ... + 10380.

It is an arithmetic number, because the mean of its divisors is an integer number (1787600).

Almost surely, 2^20245089 is an apocalyptic number.

It is an amenable number.

20245089 is a deficient number, since it is larger than the sum of its proper divisors (8356511).

20245089 is a wasteful number, since it uses less digits than its factorization.

20245089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 20245089 is about 4499.4543002458. The cubic root of 20245089 is about 272.5460528736.

The spelling of 20245089 in words is "twenty million, two hundred forty-five thousand, eighty-nine".