455147520 has 136 divisors (see below), whose sum is σ = 1459606656. Its totient is φ = 121110528.

The previous prime is 455147491. The next prime is 455147533. The reversal of 455147520 is 25741554.

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, 982809 + ... + 983271.

Almost surely, 2^455147520 is an apocalyptic number.

455147520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 455147520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (729803328).

455147520 is an abundant number, since it is smaller than the sum of its proper divisors (1004459136).

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

455147520 is an frugal number, since it uses more digits than its factorization.

455147520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 473 counting only the distinct ones).

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

The square root of 455147520 is about 21334.1866496007. The cubic root of 455147520 is about 769.2202822775.

The spelling of 455147520 in words is "four hundred fifty-five million, one hundred forty-seven thousand, five hundred twenty".