455121320 has 32 divisors (see below), whose sum is σ = 1049002920. Its totient is φ = 177607680.

The previous prime is 455121319. The next prime is 455121341. The reversal of 455121320 is 23121554.

It can be written as a sum of positive squares in 4 ways, for example, as 80389156 + 374732164 = 8966^2 + 19358^2 .

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, 137117 + ... + 140396.

Almost surely, 2^455121320 is an apocalyptic number.

455121320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

455121320 is an abundant number, since it is smaller than the sum of its proper divisors (593881600).

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

455121320 is a wasteful number, since it uses less digits than its factorization.

455121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277565 (or 277561 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 455121320 is about 21333.5726028249. The cubic root of 455121320 is about 769.2055222586.

Adding to 455121320 its reverse (23121554), we get a palindrome (478242874).

The spelling of 455121320 in words is "four hundred fifty-five million, one hundred twenty-one thousand, three hundred twenty".