455217540 has 24 divisors (see below), whose sum is σ = 1274609280. Its totient is φ = 121391328.

The previous prime is 455217527. The next prime is 455217557. The reversal of 455217540 is 45712554.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3793420 + ... + 3793539.

It is an arithmetic number, because the mean of its divisors is an integer number (53108720).

Almost surely, 2^455217540 is an apocalyptic number.

It is an amenable number.

455217540 is an abundant number, since it is smaller than the sum of its proper divisors (819391740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

455217540 is a wasteful number, since it uses less digits than its factorization.

455217540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7586971 (or 7586969 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 455217540 is about 21335.8276146017. The cubic root of 455217540 is about 769.2597259305.

The spelling of 455217540 in words is "four hundred fifty-five million, two hundred seventeen thousand, five hundred forty".