340365451 has 4 divisors (see below), whose sum is σ = 340527304. Its totient is φ = 340203600.

The previous prime is 340365439. The next prime is 340365463. The reversal of 340365451 is 154563043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154563043 = 19 ⋅8134897.

It is an interprime number because it is at equal distance from previous prime (340365439) and next prime (340365463).

It is a cyclic number.

It is not a de Polignac number, because 340365451 - 2⁵ = 340365419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340365401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77730 + ... + 81991.

It is an arithmetic number, because the mean of its divisors is an integer number (85131826).

Almost surely, 2^340365451 is an apocalyptic number.

340365451 is a deficient number, since it is larger than the sum of its proper divisors (161853).

340365451 is a wasteful number, since it uses less digits than its factorization.

340365451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161852.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 340365451 is about 18448.9959347386. The cubic root of 340365451 is about 698.2031815185.

The spelling of 340365451 in words is "three hundred forty million, three hundred sixty-five thousand, four hundred fifty-one".