450533340 has 120 divisors (see below), whose sum is σ = 1433611872. Its totient is φ = 118419840.

The previous prime is 450533311. The next prime is 450533383. The reversal of 450533340 is 43335054.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 113062 + ... + 116978.

Almost surely, 2^450533340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 450533340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (716805936).

450533340 is an abundant number, since it is smaller than the sum of its proper divisors (983078532).

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

450533340 is a wasteful number, since it uses less digits than its factorization.

450533340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009 (or 3998 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 450533340 is about 21225.7706573872. The cubic root of 450533340 is about 766.6120561815.

Adding to 450533340 its reverse (43335054), we get a palindrome (493868394).

The spelling of 450533340 in words is "four hundred fifty million, five hundred thirty-three thousand, three hundred forty".