340242351 has 16 divisors (see below), whose sum is σ = 463488480. Its totient is φ = 221936000.

The previous prime is 340242257. The next prime is 340242361. The reversal of 340242351 is 153242043.

It is a cyclic number.

It is not a de Polignac number, because 340242351 - 2¹⁷ = 340111279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340242361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59101 + ... + 64601.

It is an arithmetic number, because the mean of its divisors is an integer number (28968030).

Almost surely, 2^340242351 is an apocalyptic number.

340242351 is a deficient number, since it is larger than the sum of its proper divisors (123246129).

340242351 is a wasteful number, since it uses less digits than its factorization.

340242351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5946.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 340242351 is about 18445.6594081101. The cubic root of 340242351 is about 698.1189983019.

Adding to 340242351 its reverse (153242043), we get a palindrome (493484394).

It can be divided in two parts, 3402 and 42351, that added together give a triangular number (45753 = T₃₀₂).

The spelling of 340242351 in words is "three hundred forty million, two hundred forty-two thousand, three hundred fifty-one".