450642402 has 48 divisors (see below), whose sum is σ = 1132552512. Its totient is φ = 126830880.

The previous prime is 450642389. The next prime is 450642419. The reversal of 450642402 is 204246054.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18249 + ... + 35132.

It is an arithmetic number, because the mean of its divisors is an integer number (23594844).

Almost surely, 2^450642402 is an apocalyptic number.

450642402 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

450642402 is an abundant number, since it is smaller than the sum of its proper divisors (681910110).

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

450642402 is a wasteful number, since it uses less digits than its factorization.

450642402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53463 (or 53460 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 450642402 is about 21228.3395959270. The cubic root of 450642402 is about 766.6739099085.

Adding to 450642402 its reverse (204246054), we get a palindrome (654888456).

The spelling of 450642402 in words is "four hundred fifty million, six hundred forty-two thousand, four hundred two".