340256751 has 24 divisors (see below), whose sum is σ = 483473424. Its totient is φ = 212812800.

The previous prime is 340256743. The next prime is 340256783. The reversal of 340256751 is 157652043.

It is not a de Polignac number, because 340256751 - 2³ = 340256743 is a prime.

It is a super-4 number, since 4×340256751⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340256951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520741 + ... + 521393.

It is an arithmetic number, because the mean of its divisors is an integer number (20144726).

Almost surely, 2^340256751 is an apocalyptic number.

340256751 is a deficient number, since it is larger than the sum of its proper divisors (143216673).

340256751 is a wasteful number, since it uses less digits than its factorization.

340256751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1274 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 340256751 is about 18446.0497397139. The cubic root of 340256751 is about 698.1288469404.

The spelling of 340256751 in words is "three hundred forty million, two hundred fifty-six thousand, seven hundred fifty-one".