402255142346 has 8 divisors (see below), whose sum is σ = 606017573220. Its totient is φ = 200249284608.

The previous prime is 402255142343. The next prime is 402255142363. The reversal of 402255142346 is 643241552204.

It can be written as a sum of positive squares in 2 ways, for example, as 399974029225 + 2281113121 = 632435^2 + 47761^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (402255142343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439142711 + ... + 439143626.

Almost surely, 2^402255142346 is an apocalyptic number.

402255142346 is a deficient number, since it is larger than the sum of its proper divisors (203762430874).

402255142346 is a wasteful number, since it uses less digits than its factorization.

402255142346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878286568.

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 402255142346 in words is "four hundred two billion, two hundred fifty-five million, one hundred forty-two thousand, three hundred forty-six".