340404155 has 32 divisors (see below), whose sum is σ = 506677248. Its totient is φ = 213782400.

The previous prime is 340404143. The next prime is 340404157. The reversal of 340404155 is 551404043.

It is not a de Polignac number, because 340404155 - 2⁴ = 340404139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340404157) 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, 56750 + ... + 62460.

It is an arithmetic number, because the mean of its divisors is an integer number (15833664).

Almost surely, 2^340404155 is an apocalyptic number.

340404155 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

340404155 is a deficient number, since it is larger than the sum of its proper divisors (166273093).

340404155 is a wasteful number, since it uses less digits than its factorization.

340404155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5867.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 340404155 is about 18450.0448508940. The cubic root of 340404155 is about 698.2296454576.

Adding to 340404155 its reverse (551404043), we get a palindrome (891808198).

The spelling of 340404155 in words is "three hundred forty million, four hundred four thousand, one hundred fifty-five".