340020255 has 32 divisors (see below), whose sum is σ = 550296576. Its totient is φ = 179270784.

The previous prime is 340020251. The next prime is 340020287. The reversal of 340020255 is 552020043.

It is not a de Polignac number, because 340020255 - 2² = 340020251 is a prime.

It is a super-2 number, since 2×340020255² = 231227547620530050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340020251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 734154 + ... + 734616.

It is an arithmetic number, because the mean of its divisors is an integer number (17196768).

Almost surely, 2^340020255 is an apocalyptic number.

340020255 is a deficient number, since it is larger than the sum of its proper divisors (210276321).

340020255 is a wasteful number, since it uses less digits than its factorization.

340020255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 340020255 is about 18439.6381472089. The cubic root of 340020255 is about 697.9670642609.

Adding to 340020255 its reverse (552020043), we get a palindrome (892040298).

The spelling of 340020255 in words is "three hundred forty million, twenty thousand, two hundred fifty-five".