340040400255 has 24 divisors (see below), whose sum is σ = 603110418768. Its totient is φ = 177137323776.

The previous prime is 340040400209. The next prime is 340040400283. The reversal of 340040400255 is 552004040043.

340040400255 is a `hidden beast` number, since 3 + 4 + 0 + 0 + 4 + 0 + 400 + 255 = 666.

It is not a de Polignac number, because 340040400255 - 2⁷ = 340040400127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87863802 + ... + 87867671.

It is an arithmetic number, because the mean of its divisors is an integer number (25129600782).

Almost surely, 2^340040400255 is an apocalyptic number.

340040400255 is a deficient number, since it is larger than the sum of its proper divisors (263070018513).

340040400255 is a wasteful number, since it uses less digits than its factorization.

340040400255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175731527 (or 175731524 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

Adding to 340040400255 its reverse (552004040043), we get a palindrome (892044440298).

The spelling of 340040400255 in words is "three hundred forty billion, forty million, four hundred thousand, two hundred fifty-five".