340561782 has 192 divisors, whose sum is σ = 917070336. Its totient is φ = 90055680.

The previous prime is 340561733. The next prime is 340561783. The reversal of 340561782 is 287165043.

340561782 is a `hidden beast` number, since 34 + 0 + 5 + 617 + 8 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340561783) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4103113 + ... + 4103195.

It is an arithmetic number, because the mean of its divisors is an integer number (4776408).

Almost surely, 2^340561782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340561782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458535168).

340561782 is an abundant number, since it is smaller than the sum of its proper divisors (576508554).

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

340561782 is a wasteful number, since it uses less digits than its factorization.

340561782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 340561782 is about 18454.3160805271. The cubic root of 340561782 is about 698.3374025252.

The spelling of 340561782 in words is "three hundred forty million, five hundred sixty-one thousand, seven hundred eighty-two".