340940551 has 8 divisors (see below), whose sum is σ = 389879840. Its totient is φ = 292059648.

The previous prime is 340940513. The next prime is 340940581. The reversal of 340940551 is 155049043.

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 340940551 - 2¹¹ = 340938503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340940581) 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 7 ways as a sum of consecutive naturals, for example, 1266 + ... + 26143.

It is an arithmetic number, because the mean of its divisors is an integer number (48734980).

Almost surely, 2^340940551 is an apocalyptic number.

340940551 is a deficient number, since it is larger than the sum of its proper divisors (48939289).

340940551 is a wasteful number, since it uses less digits than its factorization.

340940551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29193.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 340940551 is about 18464.5755705351. The cubic root of 340940551 is about 698.5962009508.

Adding to 340940551 its reverse (155049043), we get a palindrome (495989594).

The spelling of 340940551 in words is "three hundred forty million, nine hundred forty thousand, five hundred fifty-one".