340751 has 4 divisors (see below), whose sum is σ = 349104. Its totient is φ = 332400.

The previous prime is 340723. The next prime is 340757. The reversal of 340751 is 157043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 157043 = 97 ⋅1619.

It is a cyclic number.

It is not a de Polignac number, because 340751 - 2⁶ = 340687 is a prime.

It is a super-2 number, since 2×340751² = 232222488002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340757) 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, 4115 + ... + 4196.

It is an arithmetic number, because the mean of its divisors is an integer number (87276).

2³⁴⁰⁷⁵¹ is an apocalyptic number.

340751 is a deficient number, since it is larger than the sum of its proper divisors (8353).

340751 is an equidigital number, since it uses as much as digits as its factorization.

340751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8352.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 340751 is about 583.7388114559. The cubic root of 340751 is about 69.8466711948.

Adding to 340751 its reverse (157043), we get a palindrome (497794).

The spelling of 340751 in words is "three hundred forty thousand, seven hundred fifty-one".