450344520 has 96 divisors (see below), whose sum is σ = 1485544320. Its totient is φ = 118293120.

The previous prime is 450344513. The next prime is 450344527. The reversal of 450344520 is 25443054.

It is an interprime number because it is at equal distance from previous prime (450344513) and next prime (450344527).

It is not an unprimeable number, because it can be changed into a prime (450344527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14785 + ... + 33455.

It is an arithmetic number, because the mean of its divisors is an integer number (15474420).

Almost surely, 2^450344520 is an apocalyptic number.

450344520 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 450344520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742772160).

450344520 is an abundant number, since it is smaller than the sum of its proper divisors (1035199800).

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

450344520 is a wasteful number, since it uses less digits than its factorization.

450344520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18755 (or 18748 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 450344520 is about 21221.3222962190. The cubic root of 450344520 is about 766.5049446745.

Adding to 450344520 its reverse (25443054), we get a palindrome (475787574).

The spelling of 450344520 in words is "four hundred fifty million, three hundred forty-four thousand, five hundred twenty".