340044240 has 40 divisors (see below), whose sum is σ = 1054137888. Its totient is φ = 90678400.

The previous prime is 340044209. The next prime is 340044241. The reversal of 340044240 is 42440043.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340044241) by changing a digit.

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, 708186 + ... + 708665.

Almost surely, 2^340044240 is an apocalyptic number.

340044240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

340044240 is an abundant number, since it is smaller than the sum of its proper divisors (714093648).

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

340044240 is a wasteful number, since it uses less digits than its factorization.

340044240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416867 (or 1416861 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 340044240 is about 18440.2885009969. The cubic root of 340044240 is about 697.9834753876.

Adding to 340044240 its reverse (42440043), we get a palindrome (382484283).

The spelling of 340044240 in words is "three hundred forty million, forty-four thousand, two hundred forty".