342121349 has 4 divisors (see below), whose sum is σ = 342860736. Its totient is φ = 341381964.

The previous prime is 342121337. The next prime is 342121357. The reversal of 342121349 is 943121243.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 943121243 = 2381 ⋅396103.

It is a cyclic number.

It is not a de Polignac number, because 342121349 - 2⁴ = 342121333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342121309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368999 + ... + 369924.

It is an arithmetic number, because the mean of its divisors is an integer number (85715184).

Almost surely, 2^342121349 is an apocalyptic number.

It is an amenable number.

342121349 is a deficient number, since it is larger than the sum of its proper divisors (739387).

342121349 is an equidigital number, since it uses as much as digits as its factorization.

342121349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739386.

The product of its digits is 5184, while the sum is 29.

The square root of 342121349 is about 18496.5226191303. The cubic root of 342121349 is about 699.4017671161.

The spelling of 342121349 in words is "three hundred forty-two million, one hundred twenty-one thousand, three hundred forty-nine".