445454091 has 12 divisors (see below), whose sum is σ = 649681968. Its totient is φ = 294085584.

The previous prime is 445454089. The next prime is 445454099. The reversal of 445454091 is 190454544.

It is not a de Polignac number, because 445454091 - 2¹ = 445454089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445454099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239340 + ... + 241193.

It is an arithmetic number, because the mean of its divisors is an integer number (54140164).

Almost surely, 2^445454091 is an apocalyptic number.

445454091 is a deficient number, since it is larger than the sum of its proper divisors (204227877).

445454091 is a wasteful number, since it uses less digits than its factorization.

445454091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480642 (or 480639 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 445454091 is about 21105.7833543321. The cubic root of 445454091 is about 763.7202697267.

The spelling of 445454091 in words is "four hundred forty-five million, four hundred fifty-four thousand, ninety-one".