1442450646 has 256 divisors, whose sum is σ = 4319723520. Its totient is φ = 345876480.

The previous prime is 1442450641. The next prime is 1442450689. The reversal of 1442450646 is 6460542441.

1442450646 is a `hidden beast` number, since 1 + 4 + 4 + 2 + 4 + 5 + 0 + 646 = 666.

It is a super-2 number, since 2×1442450646² = 4161327732291634632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1442450646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442450641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2589400 + ... + 2589956.

It is an arithmetic number, because the mean of its divisors is an integer number (16873920).

Almost surely, 2^1442450646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1442450646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2159861760).

1442450646 is an abundant number, since it is smaller than the sum of its proper divisors (2877272874).

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

1442450646 is a wasteful number, since it uses less digits than its factorization.

1442450646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 1442450646 is about 37979.6082918189. The cubic root of 1442450646 is about 1129.8834677647.

The spelling of 1442450646 in words is "one billion, four hundred forty-two million, four hundred fifty thousand, six hundred forty-six".