340744381878 has 8 divisors (see below), whose sum is σ = 681488763768. Its totient is φ = 113581460624.

The previous prime is 340744381877. The next prime is 340744381931. The reversal of 340744381878 is 878183447043.

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

340744381878 is an admirable number.

It is a super-2 number, since 2×340744381878² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340744381877) by changing a digit.

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, 28395365151 + ... + 28395365162.

It is an arithmetic number, because the mean of its divisors is an integer number (85186095471).

Almost surely, 2^340744381878 is an apocalyptic number.

340744381878 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.

340744381878 is a wasteful number, since it uses less digits than its factorization.

340744381878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56790730318.

The product of its (nonzero) digits is 14450688, while the sum is 57.

The spelling of 340744381878 in words is "three hundred forty billion, seven hundred forty-four million, three hundred eighty-one thousand, eight hundred seventy-eight".