342787869 has 20 divisors (see below), whose sum is σ = 525910044. Its totient is φ = 222346944.

The previous prime is 342787867. The next prime is 342787927. The reversal of 342787869 is 968787243.

It can be written as a sum of positive squares in 2 ways, for example, as 140067225 + 202720644 = 11835^2 + 14238^2 .

It is not a de Polignac number, because 342787869 - 2¹ = 342787867 is a prime.

It is a super-2 number, since 2×342787869² = 235007046267122322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342787867) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 54192 + ... + 60185.

Almost surely, 2^342787869 is an apocalyptic number.

It is an amenable number.

342787869 is a deficient number, since it is larger than the sum of its proper divisors (183122175).

342787869 is a wasteful number, since it uses less digits than its factorization.

342787869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114426 (or 114417 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 342787869 is about 18514.5312930141. The cubic root of 342787869 is about 699.8556634378.

The spelling of 342787869 in words is "three hundred forty-two million, seven hundred eighty-seven thousand, eight hundred sixty-nine".