340568783280 has 400 divisors, whose sum is σ = 1366286685984. Its totient is φ = 77705256960.

The previous prime is 340568783267. The next prime is 340568783287. The reversal of 340568783280 is 82387865043.

340568783280 is a `hidden beast` number, since 3 + 4 + 0 + 568 + 78 + 3 + 2 + 8 + 0 = 666.

It is a super-2 number, since 2×340568783280² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (340568783287) 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, 1071234 + ... + 1352286.

Almost surely, 2^340568783280 is an apocalyptic number.

340568783280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340568783280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683143342992).

340568783280 is an abundant number, since it is smaller than the sum of its proper divisors (1025717902704).

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

340568783280 is a wasteful number, since it uses less digits than its factorization.

340568783280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281106 (or 281091 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 340568783280 in words is "three hundred forty billion, five hundred sixty-eight million, seven hundred eighty-three thousand, two hundred eighty".