340342555 has 16 divisors (see below), whose sum is σ = 467195904. Its totient is φ = 233157600.

The previous prime is 340342543. The next prime is 340342577. The reversal of 340342555 is 555243043.

It is a happy number.

It is not a de Polignac number, because 340342555 - 2⁹ = 340342043 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38830 + ... + 46780.

It is an arithmetic number, because the mean of its divisors is an integer number (29199744).

Almost surely, 2^340342555 is an apocalyptic number.

340342555 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

340342555 is a deficient number, since it is larger than the sum of its proper divisors (126853349).

340342555 is a wasteful number, since it uses less digits than its factorization.

340342555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9186.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 340342555 is about 18448.3754027286. The cubic root of 340342555 is about 698.1875253872.

Adding to 340342555 its reverse (555243043), we get a palindrome (895585598).

The spelling of 340342555 in words is "three hundred forty million, three hundred forty-two thousand, five hundred fifty-five".