342779489 has 6 divisors (see below), whose sum is σ = 371175606. Its totient is φ = 316411680.

The previous prime is 342779453. The next prime is 342779491. The reversal of 342779489 is 984977243.

It can be written as a sum of positive squares in 3 ways, for example, as 33547264 + 309232225 = 5792^2 + 17585^2 .

It is not a de Polignac number, because 342779489 - 2⁸ = 342779233 is a prime.

It is a super-2 number, since 2×342779489² = 234995556158202242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 342779489.

It is not an unprimeable number, because it can be changed into a prime (342779089) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1013972 + ... + 1014309.

It is an arithmetic number, because the mean of its divisors is an integer number (61862601).

Almost surely, 2^342779489 is an apocalyptic number.

It is an amenable number.

342779489 is a deficient number, since it is larger than the sum of its proper divisors (28396117).

342779489 is a wasteful number, since it uses less digits than its factorization.

342779489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028307 (or 2028294 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 53.

The square root of 342779489 is about 18514.3049829044. The cubic root of 342779489 is about 699.8499603595.

The spelling of 342779489 in words is "three hundred forty-two million, seven hundred seventy-nine thousand, four hundred eighty-nine".