340860731904 has 800 divisors, whose sum is σ = 1277820821376. Its totient is φ = 87880826880.

The previous prime is 340860731903. The next prime is 340860731923. The reversal of 340860731904 is 409137068043.

340860731904 is a `hidden beast` number, since 3 + 4 + 0 + 8 + 607 + 31 + 9 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 340860731904.

It is not an unprimeable number, because it can be changed into a prime (340860731903) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 552448204 + ... + 552448820.

Almost surely, 2^340860731904 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 340860731904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638910410688).

340860731904 is an abundant number, since it is smaller than the sum of its proper divisors (936960089472).

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

340860731904 is a wasteful number, since it uses less digits than its factorization.

340860731904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

Adding to 340860731904 its reverse (409137068043), we get a palindrome (749997799947).

The spelling of 340860731904 in words is "three hundred forty billion, eight hundred sixty million, seven hundred thirty-one thousand, nine hundred four".