445989455 has 8 divisors (see below), whose sum is σ = 536382000. Its totient is φ = 355995136.

The previous prime is 445989443. The next prime is 445989457. The reversal of 445989455 is 554989544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 445989455 - 2⁶ = 445989391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 445989397 and 445989406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445989457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97085 + ... + 101574.

It is an arithmetic number, because the mean of its divisors is an integer number (67047750).

Almost surely, 2^445989455 is an apocalyptic number.

445989455 is a deficient number, since it is larger than the sum of its proper divisors (90392545).

445989455 is a wasteful number, since it uses less digits than its factorization.

445989455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199113.

The product of its digits is 5184000, while the sum is 53.

The square root of 445989455 is about 21118.4624203563. The cubic root of 445989455 is about 764.0261034501.

The spelling of 445989455 in words is "four hundred forty-five million, nine hundred eighty-nine thousand, four hundred fifty-five".