455420878 has 8 divisors (see below), whose sum is σ = 745234200. Its totient is φ = 207009480.

The previous prime is 455420873. The next prime is 455420879. The reversal of 455420878 is 878024554.

It is a happy number.

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

It is a super-2 number, since 2×455420878² = 414816352236581768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455420873) 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, 10350453 + ... + 10350496.

It is an arithmetic number, because the mean of its divisors is an integer number (93154275).

Almost surely, 2^455420878 is an apocalyptic number.

455420878 is a deficient number, since it is larger than the sum of its proper divisors (289813322).

455420878 is a wasteful number, since it uses less digits than its factorization.

455420878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20700962.

The product of its (nonzero) digits is 358400, while the sum is 43.

The square root of 455420878 is about 21340.5922598226. The cubic root of 455420878 is about 769.3742473304.

The spelling of 455420878 in words is "four hundred fifty-five million, four hundred twenty thousand, eight hundred seventy-eight".