455444013 has 4 divisors (see below), whose sum is σ = 607258688. Its totient is φ = 303629340.

The previous prime is 455444009. The next prime is 455444023. The reversal of 455444013 is 310444554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 455444013 - 2² = 455444009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455444023) 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, 75907333 + ... + 75907338.

It is an arithmetic number, because the mean of its divisors is an integer number (151814672).

Almost surely, 2^455444013 is an apocalyptic number.

It is an amenable number.

455444013 is a deficient number, since it is larger than the sum of its proper divisors (151814675).

455444013 is a wasteful number, since it uses less digits than its factorization.

455444013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151814674.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 455444013 is about 21341.1342950650. The cubic root of 455444013 is about 769.3872749661.

Adding to 455444013 its reverse (310444554), we get a palindrome (765888567).

The spelling of 455444013 in words is "four hundred fifty-five million, four hundred forty-four thousand, thirteen".