455920439 has 4 divisors (see below), whose sum is σ = 490991256. Its totient is φ = 420849624.

The previous prime is 455920391. The next prime is 455920453. The reversal of 455920439 is 934029554.

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

It is not a de Polignac number, because 455920439 - 2²⁰ = 454871863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 455920396 and 455920405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455920489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17535389 + ... + 17535414.

It is an arithmetic number, because the mean of its divisors is an integer number (122747814).

Almost surely, 2^455920439 is an apocalyptic number.

455920439 is a deficient number, since it is larger than the sum of its proper divisors (35070817).

455920439 is a wasteful number, since it uses less digits than its factorization.

455920439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35070816.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 455920439 is about 21352.2935302042. The cubic root of 455920439 is about 769.6554589443.

The spelling of 455920439 in words is "four hundred fifty-five million, nine hundred twenty thousand, four hundred thirty-nine".