1002445251402 has 32 divisors (see below), whose sum is σ = 2292109650432. Its totient is φ = 286312151664.

The previous prime is 1002445251397. The next prime is 1002445251403. The reversal of 1002445251402 is 2041525442001.

It is a self number, because there is not a number n which added to its sum of digits gives 1002445251402.

It is not an unprimeable number, because it can be changed into a prime (1002445251403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4078228 + ... + 4317039.

It is an arithmetic number, because the mean of its divisors is an integer number (71628426576).

Almost surely, 2^{1002445251402} is an apocalyptic number.

1002445251402 is an abundant number, since it is smaller than the sum of its proper divisors (1289664399030).

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

1002445251402 is a wasteful number, since it uses less digits than its factorization.

1002445251402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8398122.

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 1002445251402 in words is "one trillion, two billion, four hundred forty-five million, two hundred fifty-one thousand, four hundred two".