342290749 has 2 divisors, whose sum is σ = 342290750. Its totient is φ = 342290748.

The previous prime is 342290743. The next prime is 342290777. The reversal of 342290749 is 947092243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290191225 + 52099524 = 17035^2 + 7218^2 .

It is a cyclic number.

It is not a de Polignac number, because 342290749 - 2¹⁹ = 341766461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342290743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171145374 + 171145375.

It is an arithmetic number, because the mean of its divisors is an integer number (171145375).

Almost surely, 2^342290749 is an apocalyptic number.

It is an amenable number.

342290749 is a deficient number, since it is larger than the sum of its proper divisors (1).

342290749 is an equidigital number, since it uses as much as digits as its factorization.

342290749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 342290749 is about 18501.1012915448. The cubic root of 342290749 is about 699.5171833861.

The spelling of 342290749 in words is "three hundred forty-two million, two hundred ninety thousand, seven hundred forty-nine".