402144343208 has 32 divisors (see below), whose sum is σ = 779891535360. Its totient is φ = 194199061440.

The previous prime is 402144343199. The next prime is 402144343213. The reversal of 402144343208 is 802343441204.

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, 1487135 + ... + 1736622.

It is an arithmetic number, because the mean of its divisors is an integer number (24371610480).

Almost surely, 2^402144343208 is an apocalyptic number.

It is an amenable number.

402144343208 is a deficient number, since it is larger than the sum of its proper divisors (377747192152).

402144343208 is a wasteful number, since it uses less digits than its factorization.

402144343208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3224297 (or 3224293 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 35.

The spelling of 402144343208 in words is "four hundred two billion, one hundred forty-four million, three hundred forty-three thousand, two hundred eight".