340765 has 16 divisors (see below), whose sum is σ = 457920. Its totient is φ = 241920.

The previous prime is 340757. The next prime is 340777. The reversal of 340765 is 567043.

It is not a de Polignac number, because 340765 - 2³ = 340757 is a prime.

It is a super-2 number, since 2×340765² = 232241570450, which contains 22 as substring.

340765 is a modest number, since divided by 765 gives 340 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1510 + ... + 1720.

It is an arithmetic number, because the mean of its divisors is an integer number (28620).

2³⁴⁰⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

340765 is a deficient number, since it is larger than the sum of its proper divisors (117155).

340765 is a wasteful number, since it uses less digits than its factorization.

340765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 340765 is about 583.7508029973. The cubic root of 340765 is about 69.8476277486.

It can be divided in two parts, 340 and 765, that multiplied together give a square (260100 = 510²).

The spelling of 340765 in words is "three hundred forty thousand, seven hundred sixty-five".