455688909 has 48 divisors (see below), whose sum is σ = 746421312. Its totient is φ = 276110208.

The previous prime is 455688901. The next prime is 455688943. The reversal of 455688909 is 909886554.

It is a happy number.

455688909 is a `hidden beast` number, since 4 + 556 + 8 + 89 + 0 + 9 = 666.

It is not a de Polignac number, because 455688909 - 2³ = 455688901 is a prime.

It is a super-2 number, since 2×455688909² = 415304763571220562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455688901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210577 + ... + 212729.

It is an arithmetic number, because the mean of its divisors is an integer number (15550444).

Almost surely, 2^455688909 is an apocalyptic number.

It is an amenable number.

455688909 is a deficient number, since it is larger than the sum of its proper divisors (290732403).

455688909 is a wasteful number, since it uses less digits than its factorization.

455688909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248 (or 2236 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The square root of 455688909 is about 21346.8711758890. The cubic root of 455688909 is about 769.5251522164.

The spelling of 455688909 in words is "four hundred fifty-five million, six hundred eighty-eight thousand, nine hundred nine".