340916749 has 2 divisors, whose sum is σ = 340916750. Its totient is φ = 340916748.

The previous prime is 340916747. The next prime is 340916761. The reversal of 340916749 is 947619043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192515625 + 148401124 = 13875^2 + 12182^2 .

It is a cyclic number.

It is not a de Polignac number, because 340916749 - 2¹ = 340916747 is a prime.

It is a super-3 number, since 3×340916749³ (a number of 27 digits) contains 333 as substring.

Together with 340916747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340916747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170458374 + 170458375.

It is an arithmetic number, because the mean of its divisors is an integer number (170458375).

Almost surely, 2^340916749 is an apocalyptic number.

It is an amenable number.

340916749 is a deficient number, since it is larger than the sum of its proper divisors (1).

340916749 is an equidigital number, since it uses as much as digits as its factorization.

340916749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 340916749 is about 18463.9310278175. The cubic root of 340916749 is about 698.5799435968.

The spelling of 340916749 in words is "three hundred forty million, nine hundred sixteen thousand, seven hundred forty-nine".