340559397 has 48 divisors (see below), whose sum is σ = 537159168. Its totient is φ = 215317440.

The previous prime is 340559393. The next prime is 340559399. The reversal of 340559397 is 793955043.

340559397 is a `hidden beast` number, since 3 + 4 + 0 + 559 + 3 + 97 = 666.

It is not a de Polignac number, because 340559397 - 2² = 340559393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340559393) 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 47 ways as a sum of consecutive naturals, for example, 398823 + ... + 399675.

It is an arithmetic number, because the mean of its divisors is an integer number (11190816).

Almost surely, 2^340559397 is an apocalyptic number.

It is an amenable number.

340559397 is a deficient number, since it is larger than the sum of its proper divisors (196599771).

340559397 is an equidigital number, since it uses as much as digits as its factorization.

340559397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 510300, while the sum is 45.

The square root of 340559397 is about 18454.2514613842. The cubic root of 340559397 is about 698.3357723378.

The spelling of 340559397 in words is "three hundred forty million, five hundred fifty-nine thousand, three hundred ninety-seven".