40402412444442 has 64 divisors (see below), whose sum is σ = 81598906368000. Its totient is φ = 13335547155840.

The previous prime is 40402412444431. The next prime is 40402412444479. The reversal of 40402412444442 is 24444421420404.

It is a self number, because there is not a number n which added to its sum of digits gives 40402412444442.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2117406342 + ... + 2117425422.

It is an arithmetic number, because the mean of its divisors is an integer number (1274982912000).

Almost surely, 2^{40402412444442} is an apocalyptic number.

40402412444442 is an abundant number, since it is smaller than the sum of its proper divisors (41196493923558).

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

40402412444442 is a wasteful number, since it uses less digits than its factorization.

40402412444442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24451.

The product of its (nonzero) digits is 524288, while the sum is 39.

Adding to 40402412444442 its reverse (24444421420404), we get a palindrome (64846833864846).

The spelling of 40402412444442 in words is "forty trillion, four hundred two billion, four hundred twelve million, four hundred forty-four thousand, four hundred forty-two".