455251220 has 12 divisors (see below), whose sum is σ = 956027604. Its totient is φ = 182100480.

The previous prime is 455251217. The next prime is 455251241. The reversal of 455251220 is 22152554.

It can be written as a sum of positive squares in 2 ways, for example, as 113592964 + 341658256 = 10658^2 + 18484^2 .

It is a super-2 number, since 2×455251220² = 414507346622976800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 455251220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11381261 + ... + 11381300.

It is an arithmetic number, because the mean of its divisors is an integer number (79668967).

Almost surely, 2^455251220 is an apocalyptic number.

It is an amenable number.

455251220 is an abundant number, since it is smaller than the sum of its proper divisors (500776384).

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

455251220 is a wasteful number, since it uses less digits than its factorization.

455251220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22762570 (or 22762568 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 455251220 is about 21336.6168827207. The cubic root of 455251220 is about 769.2786971009.

The spelling of 455251220 in words is "four hundred fifty-five million, two hundred fifty-one thousand, two hundred twenty".