1442400450 has 24 divisors (see below), whose sum is σ = 3577153488. Its totient is φ = 384640080.

The previous prime is 1442400419. The next prime is 1442400461. The reversal of 1442400450 is 540042441.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442400450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4807852 + ... + 4808151.

It is an arithmetic number, because the mean of its divisors is an integer number (149048062).

Almost surely, 2^1442400450 is an apocalyptic number.

1442400450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1442400450 is an abundant number, since it is smaller than the sum of its proper divisors (2134753038).

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

1442400450 is a wasteful number, since it uses less digits than its factorization.

1442400450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9616018 (or 9616013 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 1442400450 is about 37978.9474577693. The cubic root of 1442400450 is about 1129.8703612993.

Adding to 1442400450 its reverse (540042441), we get a palindrome (1982442891).

The spelling of 1442400450 in words is "one billion, four hundred forty-two million, four hundred thousand, four hundred fifty".