340577645 has 4 divisors (see below), whose sum is σ = 408693180. Its totient is φ = 272462112.

The previous prime is 340577597. The next prime is 340577663. The reversal of 340577645 is 546775043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 546775043 = 461 ⋅1186063.

It can be written as a sum of positive squares in 2 ways, for example, as 253510084 + 87067561 = 15922^2 + 9331^2 .

It is a cyclic number.

It is not a de Polignac number, because 340577645 - 2⁸ = 340577389 is a prime.

It is a super-3 number, since 3×340577645³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34057760 + ... + 34057769.

It is an arithmetic number, because the mean of its divisors is an integer number (102173295).

Almost surely, 2^340577645 is an apocalyptic number.

It is an amenable number.

340577645 is a deficient number, since it is larger than the sum of its proper divisors (68115535).

340577645 is an equidigital number, since it uses as much as digits as its factorization.

340577645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68115534.

The product of its (nonzero) digits is 352800, while the sum is 41.

The square root of 340577645 is about 18454.7458665786. The cubic root of 340577645 is about 698.3482449575.

The spelling of 340577645 in words is "three hundred forty million, five hundred seventy-seven thousand, six hundred forty-five".