445442455 has 4 divisors (see below), whose sum is σ = 534530952. Its totient is φ = 356353960.

The previous prime is 445442443. The next prime is 445442477. The reversal of 445442455 is 554244544.

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

It is not a de Polignac number, because 445442455 - 2¹¹ = 445440407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44544241 + ... + 44544250.

It is an arithmetic number, because the mean of its divisors is an integer number (133632738).

Almost surely, 2^445442455 is an apocalyptic number.

445442455 is a deficient number, since it is larger than the sum of its proper divisors (89088497).

445442455 is an equidigital number, since it uses as much as digits as its factorization.

445442455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89088496.

The product of its digits is 256000, while the sum is 37.

The square root of 445442455 is about 21105.5076934908. The cubic root of 445442455 is about 763.7136197885.

Adding to 445442455 its reverse (554244544), we get a palindrome (999686999).

The spelling of 445442455 in words is "four hundred forty-five million, four hundred forty-two thousand, four hundred fifty-five".