342720373 has 2 divisors, whose sum is σ = 342720374. Its totient is φ = 342720372.

The previous prime is 342720349. The next prime is 342720383. The reversal of 342720373 is 373027243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203433169 + 139287204 = 14263^2 + 11802^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342720373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342720383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171360186 + 171360187.

It is an arithmetic number, because the mean of its divisors is an integer number (171360187).

Almost surely, 2^342720373 is an apocalyptic number.

It is an amenable number.

342720373 is a deficient number, since it is larger than the sum of its proper divisors (1).

342720373 is an equidigital number, since it uses as much as digits as its factorization.

342720373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 31.

The square root of 342720373 is about 18512.7084188133. The cubic root of 342720373 is about 699.8097258353.

The spelling of 342720373 in words is "three hundred forty-two million, seven hundred twenty thousand, three hundred seventy-three".