404023401402 has 8 divisors (see below), whose sum is σ = 808046802816. Its totient is φ = 134674467132.

The previous prime is 404023401371. The next prime is 404023401413. The reversal of 404023401402 is 204104320404.

It is a happy number.

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

404023401402 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 33668616778 + ... + 33668616789.

It is an arithmetic number, because the mean of its divisors is an integer number (101005850352).

Almost surely, 2^404023401402 is an apocalyptic number.

404023401402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

404023401402 is a wasteful number, since it uses less digits than its factorization.

404023401402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67337233572.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 404023401402 its reverse (204104320404), we get a palindrome (608127721806).

The spelling of 404023401402 in words is "four hundred four billion, twenty-three million, four hundred one thousand, four hundred two".