340581740 has 48 divisors (see below), whose sum is σ = 773442432. Its totient is φ = 125485056.

The previous prime is 340581737. The next prime is 340581767. The reversal of 340581740 is 47185043.

It is a junction number, because it is equal to n+sod(n) for n = 340581697 and 340581706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5324 + ... + 26636.

It is an arithmetic number, because the mean of its divisors is an integer number (16113384).

Almost surely, 2^340581740 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 340581740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386721216).

340581740 is an abundant number, since it is smaller than the sum of its proper divisors (432860692).

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

340581740 is a wasteful number, since it uses less digits than its factorization.

340581740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21386 (or 21384 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 340581740 is about 18454.8568133161. The cubic root of 340581740 is about 698.3510438539.

The spelling of 340581740 in words is "three hundred forty million, five hundred eighty-one thousand, seven hundred forty".