340444223240 has 128 divisors (see below), whose sum is σ = 870053063040. Its totient is φ = 118798080000.

The previous prime is 340444223233. The next prime is 340444223267. The reversal of 340444223240 is 42322444043.

It is a junction number, because it is equal to n+sod(n) for n = 340444223197 and 340444223206.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 945755 + ... + 1255125.

It is an arithmetic number, because the mean of its divisors is an integer number (6797289555).

Almost surely, 2^340444223240 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 340444223240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435026531520).

340444223240 is an abundant number, since it is smaller than the sum of its proper divisors (529608839800).

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

340444223240 is a wasteful number, since it uses less digits than its factorization.

340444223240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309495 (or 309491 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 340444223240 its reverse (42322444043), we get a palindrome (382766667283).

The spelling of 340444223240 in words is "three hundred forty billion, four hundred forty-four million, two hundred twenty-three thousand, two hundred forty".