340681529 has 4 divisors (see below), whose sum is σ = 341777280. Its totient is φ = 339585780.

The previous prime is 340681507. The next prime is 340681567. The reversal of 340681529 is 925186043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 925186043 = 29 ⋅31902967.

It is a cyclic number.

It is not a de Polignac number, because 340681529 - 2⁸ = 340681273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340681492 and 340681501.

It is not an unprimeable number, because it can be changed into a prime (340686529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547409 + ... + 548030.

It is an arithmetic number, because the mean of its divisors is an integer number (85444320).

Almost surely, 2^340681529 is an apocalyptic number.

It is an amenable number.

340681529 is a deficient number, since it is larger than the sum of its proper divisors (1095751).

340681529 is a wasteful number, since it uses less digits than its factorization.

340681529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095750.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 340681529 is about 18457.5602125525. The cubic root of 340681529 is about 698.4192418214.

The spelling of 340681529 in words is "three hundred forty million, six hundred eighty-one thousand, five hundred twenty-nine".