340369973 has 2 divisors, whose sum is σ = 340369974. Its totient is φ = 340369972.

The previous prime is 340369949. The next prime is 340370011. The reversal of 340369973 is 379963043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203433169 + 136936804 = 14263^2 + 11702^2 .

It is a cyclic number.

It is not a de Polignac number, because 340369973 - 2²⁰ = 339321397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340369273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170184986 + 170184987.

It is an arithmetic number, because the mean of its divisors is an integer number (170184987).

Almost surely, 2^340369973 is an apocalyptic number.

It is an amenable number.

340369973 is a deficient number, since it is larger than the sum of its proper divisors (1).

340369973 is an equidigital number, since it uses as much as digits as its factorization.

340369973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 44.

The square root of 340369973 is about 18449.1184884265. The cubic root of 340369973 is about 698.2062735487.

The spelling of 340369973 in words is "three hundred forty million, three hundred sixty-nine thousand, nine hundred seventy-three".