340012549 has 8 divisors (see below), whose sum is σ = 348972120. Its totient is φ = 331084800.

The previous prime is 340012537. The next prime is 340012577. The reversal of 340012549 is 945210043.

It can be written as a sum of positive squares in 4 ways, for example, as 10771524 + 329241025 = 3282^2 + 18145^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 340012549 - 2¹⁵ = 339979781 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 (340012249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14517 + ... + 29845.

It is an arithmetic number, because the mean of its divisors is an integer number (43621515).

Almost surely, 2^340012549 is an apocalyptic number.

It is an amenable number.

340012549 is a deficient number, since it is larger than the sum of its proper divisors (8959571).

340012549 is a wasteful number, since it uses less digits than its factorization.

340012549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15911.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 340012549 is about 18439.4291939854. The cubic root of 340012549 is about 697.9617914625.

The spelling of 340012549 in words is "three hundred forty million, twelve thousand, five hundred forty-nine".