450422840 has 32 divisors (see below), whose sum is σ = 1158230880. Its totient is φ = 154430592.

The previous prime is 450422827. The next prime is 450422851. The reversal of 450422840 is 48224054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804047 + ... + 804606.

It is an arithmetic number, because the mean of its divisors is an integer number (36194715).

Almost surely, 2^450422840 is an apocalyptic number.

450422840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

450422840 is an abundant number, since it is smaller than the sum of its proper divisors (707808040).

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

450422840 is a wasteful number, since it uses less digits than its factorization.

450422840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608671 (or 1608667 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

The square root of 450422840 is about 21223.1675298481. The cubic root of 450422840 is about 766.5493767221.

Adding to 450422840 its reverse (48224054), we get a palindrome (498646894).

The spelling of 450422840 in words is "four hundred fifty million, four hundred twenty-two thousand, eight hundred forty".