450100720 has 20 divisors (see below), whose sum is σ = 1046484360. Its totient is φ = 180040256.

The previous prime is 450100697. The next prime is 450100723. The reversal of 450100720 is 27001054.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450100723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2813050 + ... + 2813209.

It is an arithmetic number, because the mean of its divisors is an integer number (52324218).

Almost surely, 2^450100720 is an apocalyptic number.

450100720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

450100720 is an abundant number, since it is smaller than the sum of its proper divisors (596383640).

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

450100720 is a wasteful number, since it uses less digits than its factorization.

450100720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5626272 (or 5626266 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 450100720 is about 21215.5772959399. The cubic root of 450100720 is about 766.3666004886.

Adding to 450100720 its reverse (27001054), we get a palindrome (477101774).

The spelling of 450100720 in words is "four hundred fifty million, one hundred thousand, seven hundred twenty".