340021255 has 16 divisors (see below), whose sum is σ = 466922304. Its totient is φ = 232853760.

The previous prime is 340021243. The next prime is 340021271. The reversal of 340021255 is 552120043.

It is not a de Polignac number, because 340021255 - 2⁷ = 340021127 is a prime.

It is a super-2 number, since 2×340021255² = 231228907703550050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 22819 + ... + 34651.

It is an arithmetic number, because the mean of its divisors is an integer number (29182644).

Almost surely, 2^340021255 is an apocalyptic number.

340021255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

340021255 is a deficient number, since it is larger than the sum of its proper divisors (126901049).

340021255 is a wasteful number, since it uses less digits than its factorization.

340021255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12666.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 340021255 is about 18439.6652626885. The cubic root of 340021255 is about 697.9677485009.

Adding to 340021255 its reverse (552120043), we get a palindrome (892141298).

The spelling of 340021255 in words is "three hundred forty million, twenty-one thousand, two hundred fifty-five".