1002446442 has 64 divisors (see below), whose sum is σ = 2328222720. Its totient is φ = 323326080.

The previous prime is 1002446383. The next prime is 1002446449. The reversal of 1002446442 is 2446442001.

It is a happy number.

1002446442 is a `hidden beast` number, since 10 + 0 + 2 + 4 + 4 + 644 + 2 = 666.

1002446442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1002446449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131898 + ... + 139290.

It is an arithmetic number, because the mean of its divisors is an integer number (36378480).

Almost surely, 2^1002446442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002446442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1164111360).

1002446442 is an abundant number, since it is smaller than the sum of its proper divisors (1325776278).

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

1002446442 is an frugal number, since it uses more digits than its factorization.

1002446442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7447 (or 7429 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 1002446442 is about 31661.4346168963. The cubic root of 1002446442 is about 1000.8148165603.

Adding to 1002446442 its reverse (2446442001), we get a palindrome (3448888443).

The spelling of 1002446442 in words is "one billion, two million, four hundred forty-six thousand, four hundred forty-two".