450768820 has 12 divisors (see below), whose sum is σ = 946614564. Its totient is φ = 180307520.

The previous prime is 450768761. The next prime is 450768853. The reversal of 450768820 is 28867054.

It can be written as a sum of positive squares in 2 ways, for example, as 218389284 + 232379536 = 14778^2 + 15244^2 .

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, 11269201 + ... + 11269240.

It is an arithmetic number, because the mean of its divisors is an integer number (78884547).

Almost surely, 2^450768820 is an apocalyptic number.

It is an amenable number.

450768820 is an abundant number, since it is smaller than the sum of its proper divisors (495845744).

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

450768820 is a wasteful number, since it uses less digits than its factorization.

450768820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22538450 (or 22538448 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 450768820 is about 21231.3169633916. The cubic root of 450768820 is about 766.7455944787.

The spelling of 450768820 in words is "four hundred fifty million, seven hundred sixty-eight thousand, eight hundred twenty".