1402444023402 has 32 divisors (see below), whose sum is σ = 2924455680000. Its totient is φ = 447807261888.

The previous prime is 1402444023401. The next prime is 1402444023433. The reversal of 1402444023402 is 2043204442041.

It is a self number, because there is not a number n which added to its sum of digits gives 1402444023402.

It is not an unprimeable number, because it can be changed into a prime (1402444023401) 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 15 ways as a sum of consecutive naturals, for example, 31710277 + ... + 31754472.

It is an arithmetic number, because the mean of its divisors is an integer number (91389240000).

Almost surely, 2^{1402444023402} is an apocalyptic number.

1402444023402 is an abundant number, since it is smaller than the sum of its proper divisors (1522011656598).

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

1402444023402 is a wasteful number, since it uses less digits than its factorization.

1402444023402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63464910.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 1402444023402 its reverse (2043204442041), we get a palindrome (3445648465443).

The spelling of 1402444023402 in words is "one trillion, four hundred two billion, four hundred forty-four million, twenty-three thousand, four hundred two".