340400471 has 2 divisors, whose sum is σ = 340400472. Its totient is φ = 340400470.

The previous prime is 340400449. The next prime is 340400507. The reversal of 340400471 is 174004043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340400471 - 2²⁶ = 273291607 is a prime.

It is a super-3 number, since 3×340400471³ (a number of 27 digits) contains 333 as substring.

It is equal to p_18315140 and since 340400471 and 18315140 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340400171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170200235 + 170200236.

It is an arithmetic number, because the mean of its divisors is an integer number (170200236).

Almost surely, 2^340400471 is an apocalyptic number.

340400471 is a deficient number, since it is larger than the sum of its proper divisors (1).

340400471 is an equidigital number, since it uses as much as digits as its factorization.

340400471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 340400471 is about 18449.9450134682. The cubic root of 340400471 is about 698.2271266014.

The spelling of 340400471 in words is "three hundred forty million, four hundred thousand, four hundred seventy-one".