340744361 has 2 divisors, whose sum is σ = 340744362. Its totient is φ = 340744360.

The previous prime is 340744307. The next prime is 340744409. The reversal of 340744361 is 163447043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307335961 + 33408400 = 17531^2 + 5780^2 .

It is a cyclic number.

It is not a de Polignac number, because 340744361 - 2²² = 336550057 is a prime.

It is a super-2 number, since 2×340744361² = 232213439106596642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (340744861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170372180 + 170372181.

It is an arithmetic number, because the mean of its divisors is an integer number (170372181).

Almost surely, 2^340744361 is an apocalyptic number.

It is an amenable number.

340744361 is a deficient number, since it is larger than the sum of its proper divisors (1).

340744361 is an equidigital number, since it uses as much as digits as its factorization.

340744361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 340744361 is about 18459.2622008573. The cubic root of 340744361 is about 698.4621757412.

The spelling of 340744361 in words is "three hundred forty million, seven hundred forty-four thousand, three hundred sixty-one".