342874489 has 2 divisors, whose sum is σ = 342874490. Its totient is φ = 342874488.

The previous prime is 342874487. The next prime is 342874507. The reversal of 342874489 is 984478243.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 338854464 + 4020025 = 18408^2 + 2005^2 .

It is a cyclic number.

It is not a de Polignac number, because 342874489 - 2¹ = 342874487 is a prime.

It is a super-2 number, since 2×342874489² = 235125830414022242, which contains 22 as substring.

Together with 342874487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (342874481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171437244 + 171437245.

It is an arithmetic number, because the mean of its divisors is an integer number (171437245).

Almost surely, 2^342874489 is an apocalyptic number.

It is an amenable number.

342874489 is a deficient number, since it is larger than the sum of its proper divisors (1).

342874489 is an equidigital number, since it uses as much as digits as its factorization.

342874489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1548288, while the sum is 49.

The square root of 342874489 is about 18516.8703889183. The cubic root of 342874489 is about 699.9146079509.

The spelling of 342874489 in words is "three hundred forty-two million, eight hundred seventy-four thousand, four hundred eighty-nine".