402442122145 has 8 divisors (see below), whose sum is σ = 551920624704. Its totient is φ = 275960312304.

The previous prime is 402442122091. The next prime is 402442122191. The reversal of 402442122145 is 541221244204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402442122145 - 2²⁷ = 402307904417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5749173139 + ... + 5749173208.

It is an arithmetic number, because the mean of its divisors is an integer number (68990078088).

Almost surely, 2^402442122145 is an apocalyptic number.

It is an amenable number.

402442122145 is a deficient number, since it is larger than the sum of its proper divisors (149478502559).

402442122145 is a wasteful number, since it uses less digits than its factorization.

402442122145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11498346359.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 402442122145 its reverse (541221244204), we get a palindrome (943663366349).

The spelling of 402442122145 in words is "four hundred two billion, four hundred forty-two million, one hundred twenty-two thousand, one hundred forty-five".