340455645 has 24 divisors (see below), whose sum is σ = 590592600. Its totient is φ = 181431936.

The previous prime is 340455641. The next prime is 340455659. The reversal of 340455645 is 546554043.

340455645 is a `hidden beast` number, since 3 + 4 + 0 + 4 + 5 + 5 + 645 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 227798649 + 112656996 = 15093^2 + 10614^2 .

It is not a de Polignac number, because 340455645 - 2² = 340455641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340455641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78391 + ... + 82619.

It is an arithmetic number, because the mean of its divisors is an integer number (24608025).

Almost surely, 2^340455645 is an apocalyptic number.

It is an amenable number.

340455645 is a deficient number, since it is larger than the sum of its proper divisors (250136955).

340455645 is a wasteful number, since it uses less digits than its factorization.

340455645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6029 (or 6026 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The square root of 340455645 is about 18451.4401876927. The cubic root of 340455645 is about 698.2648487410.

It can be divided in two parts, 3404 and 55645, that added together give a 10-th power (59049 = 3¹⁰).

The spelling of 340455645 in words is "three hundred forty million, four hundred fifty-five thousand, six hundred forty-five".