340073431 has 2 divisors, whose sum is σ = 340073432. Its totient is φ = 340073430.

The previous prime is 340073429. The next prime is 340073443. The reversal of 340073431 is 134370043.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340073431 - 2¹ = 340073429 is a prime.

It is a super-2 number, since 2×340073431² = 231299876944223522, which contains 22 as substring.

Together with 340073429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 340073396 and 340073405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340073411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170036715 + 170036716.

It is an arithmetic number, because the mean of its divisors is an integer number (170036716).

Almost surely, 2^340073431 is an apocalyptic number.

340073431 is a deficient number, since it is larger than the sum of its proper divisors (1).

340073431 is an equidigital number, since it uses as much as digits as its factorization.

340073431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 340073431 is about 18441.0799846430. The cubic root of 340073431 is about 698.0034475463.

The spelling of 340073431 in words is "three hundred forty million, seventy-three thousand, four hundred thirty-one".