340145040 has 40 divisors (see below), whose sum is σ = 1054450368. Its totient is φ = 90705280.

The previous prime is 340145017. The next prime is 340145123. The reversal of 340145040 is 40541043.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 340144998 and 340145016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708396 + ... + 708875.

Almost surely, 2^340145040 is an apocalyptic number.

340145040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340145040 is an abundant number, since it is smaller than the sum of its proper divisors (714305328).

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

340145040 is a wasteful number, since it uses less digits than its factorization.

340145040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417287 (or 1417281 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 340145040 is about 18443.0214444380. The cubic root of 340145040 is about 698.0524367904.

Adding to 340145040 its reverse (40541043), we get a palindrome (380686083).

The spelling of 340145040 in words is "three hundred forty million, one hundred forty-five thousand, forty".