402144241444 has 24 divisors (see below), whose sum is σ = 777448022400. Its totient is φ = 180479002080.

The previous prime is 402144241427. The next prime is 402144241481. The reversal of 402144241444 is 444142441204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57842359 + ... + 57849310.

It is an arithmetic number, because the mean of its divisors is an integer number (32393667600).

Almost surely, 2^402144241444 is an apocalyptic number.

402144241444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

402144241444 is a deficient number, since it is larger than the sum of its proper divisors (375303780956).

402144241444 is a wasteful number, since it uses less digits than its factorization.

402144241444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115691763 (or 115691761 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 34.

Adding to 402144241444 its reverse (444142441204), we get a palindrome (846286682648).

The spelling of 402144241444 in words is "four hundred two billion, one hundred forty-four million, two hundred forty-one thousand, four hundred forty-four".