340040555 has 16 divisors (see below), whose sum is σ = 411272640. Its totient is φ = 269893632.

The previous prime is 340040551. The next prime is 340040563. The reversal of 340040555 is 555040043.

It is a cyclic number.

It is not a de Polignac number, because 340040555 - 2² = 340040551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340040551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525242 + ... + 525888.

It is an arithmetic number, because the mean of its divisors is an integer number (25704540).

Almost surely, 2^340040555 is an apocalyptic number.

340040555 is a deficient number, since it is larger than the sum of its proper divisors (71232085).

340040555 is a wasteful number, since it uses less digits than its factorization.

340040555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 340040555 is about 18440.1885836344. The cubic root of 340040555 is about 697.9809540702.

Adding to 340040555 its reverse (555040043), we get a palindrome (895080598).

The spelling of 340040555 in words is "three hundred forty million, forty thousand, five hundred fifty-five".