340645925 has 12 divisors (see below), whose sum is σ = 422820036. Its totient is φ = 272246400.

The previous prime is 340645901. The next prime is 340645931. The reversal of 340645925 is 529546043.

It can be written as a sum of positive squares in 6 ways, for example, as 833569 + 339812356 = 913^2 + 18434^2 .

It is not a de Polignac number, because 340645925 - 2¹⁸ = 340383781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21215 + ... + 33635.

It is an arithmetic number, because the mean of its divisors is an integer number (35235003).

Almost surely, 2^340645925 is an apocalyptic number.

It is an amenable number.

340645925 is a deficient number, since it is larger than the sum of its proper divisors (82174111).

340645925 is a wasteful number, since it uses less digits than its factorization.

340645925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13528 (or 13523 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 340645925 is about 18456.5957045171. The cubic root of 340645925 is about 698.3949108037.

The spelling of 340645925 in words is "three hundred forty million, six hundred forty-five thousand, nine hundred twenty-five".