346881478340 has 12 divisors (see below), whose sum is σ = 728451104556. Its totient is φ = 138752591328.

The previous prime is 346881478319. The next prime is 346881478351. The reversal of 346881478340 is 43874188643.

It can be written as a sum of positive squares in 2 ways, for example, as 177099572224 + 169781906116 = 420832^2 + 412046^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8672036939 + ... + 8672036978.

It is an arithmetic number, because the mean of its divisors is an integer number (60704258713).

Almost surely, 2^346881478340 is an apocalyptic number.

It is an amenable number.

346881478340 is an abundant number, since it is smaller than the sum of its proper divisors (381569626216).

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

346881478340 is a wasteful number, since it uses less digits than its factorization.

346881478340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17344073926 (or 17344073924 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 56.

The spelling of 346881478340 in words is "three hundred forty-six billion, eight hundred eighty-one million, four hundred seventy-eight thousand, three hundred forty".