402442399993 has 32 divisors (see below), whose sum is σ = 445429555200. Its totient is φ = 362114323200.

The previous prime is 402442399963. The next prime is 402442400011. The reversal of 402442399993 is 399993244204.

It is not a de Polignac number, because 402442399993 - 2¹³ = 402442391801 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (402442399963) 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, 21918705 + ... + 21937057.

It is an arithmetic number, because the mean of its divisors is an integer number (13919673600).

Almost surely, 2^402442399993 is an apocalyptic number.

It is an amenable number.

402442399993 is a deficient number, since it is larger than the sum of its proper divisors (42987155207).

402442399993 is a wasteful number, since it uses less digits than its factorization.

402442399993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19093.

The product of its (nonzero) digits is 15116544, while the sum is 58.

The spelling of 402442399993 in words is "four hundred two billion, four hundred forty-two million, three hundred ninety-nine thousand, nine hundred ninety-three".