450402420 has 96 divisors (see below), whose sum is σ = 1438069248. Its totient is φ = 104343552.

The previous prime is 450402419. The next prime is 450402439. The reversal of 450402420 is 24204054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3724 + ... + 30243.

It is an arithmetic number, because the mean of its divisors is an integer number (14979888).

Almost surely, 2^450402420 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 450402420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (719034624).

450402420 is an abundant number, since it is smaller than the sum of its proper divisors (987666828).

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

450402420 is a wasteful number, since it uses less digits than its factorization.

450402420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34009 (or 34007 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 450402420 is about 21222.6864463479. The cubic root of 450402420 is about 766.5377926627.

Adding to 450402420 its reverse (24204054), we get a palindrome (474606474).

The spelling of 450402420 in words is "four hundred fifty million, four hundred two thousand, four hundred twenty".