445780099 has 4 divisors (see below), whose sum is σ = 448020400. Its totient is φ = 443539800.

The previous prime is 445780091. The next prime is 445780117. The reversal of 445780099 is 990087544.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 445780099 - 2³ = 445780091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445780091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119852 + ... + 1120249.

It is an arithmetic number, because the mean of its divisors is an integer number (112005100).

Almost surely, 2^445780099 is an apocalyptic number.

445780099 is a deficient number, since it is larger than the sum of its proper divisors (2240301).

445780099 is a wasteful number, since it uses less digits than its factorization.

445780099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240300.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 445780099 is about 21113.5051329712. The cubic root of 445780099 is about 763.9065352391.

The spelling of 445780099 in words is "four hundred forty-five million, seven hundred eighty thousand, ninety-nine".