340012493 has 4 divisors (see below), whose sum is σ = 340097340. Its totient is φ = 339927648.

The previous prime is 340012483. The next prime is 340012511. The reversal of 340012493 is 394210043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 250842244 + 89170249 = 15838^2 + 9443^2 .

It is a cyclic number.

It is not a de Polignac number, because 340012493 - 2¹⁸ = 339750349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340012483) 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 in 3 ways as a sum of consecutive naturals, for example, 36098 + ... + 44531.

It is an arithmetic number, because the mean of its divisors is an integer number (85024335).

Almost surely, 2^340012493 is an apocalyptic number.

It is an amenable number.

340012493 is a deficient number, since it is larger than the sum of its proper divisors (84847).

340012493 is an equidigital number, since it uses as much as digits as its factorization.

340012493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84846.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 340012493 is about 18439.4276755001. The cubic root of 340012493 is about 697.9617531444.

The spelling of 340012493 in words is "three hundred forty million, twelve thousand, four hundred ninety-three".