245447445 has 32 divisors (see below), whose sum is σ = 430168320. Its totient is φ = 118952960.

The previous prime is 245447441. The next prime is 245447459. The reversal of 245447445 is 544744542.

245447445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245447445 - 2² = 245447441 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245447441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9201 + ... + 23990.

It is an arithmetic number, because the mean of its divisors is an integer number (13442760).

Almost surely, 2^245447445 is an apocalyptic number.

It is an amenable number.

245447445 is a deficient number, since it is larger than the sum of its proper divisors (184720875).

245447445 is a wasteful number, since it uses less digits than its factorization.

245447445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33245.

The product of its digits is 358400, while the sum is 39.

The square root of 245447445 is about 15666.7624287853. The cubic root of 245447445 is about 626.1131692563.

The spelling of 245447445 in words is "two hundred forty-five million, four hundred forty-seven thousand, four hundred forty-five".