340381778904 has 160 divisors (see below), whose sum is σ = 996000445440. Its totient is φ = 108477144000.

The previous prime is 340381778899. The next prime is 340381778983. The reversal of 340381778904 is 409877183043.

340381778904 is a `hidden beast` number, since 3 + 403 + 81 + 7 + 78 + 90 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1565229 + ... + 1769379.

It is an arithmetic number, because the mean of its divisors is an integer number (6225002784).

Almost surely, 2^340381778904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340381778904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498000222720).

340381778904 is an abundant number, since it is smaller than the sum of its proper divisors (655618666536).

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

340381778904 is a wasteful number, since it uses less digits than its factorization.

340381778904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204283 (or 204270 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 340381778904 in words is "three hundred forty billion, three hundred eighty-one million, seven hundred seventy-eight thousand, nine hundred four".