2169602842 has 12 divisors (see below), whose sum is σ = 3577155498. Its totient is φ = 986183000.

The previous prime is 2169602801. The next prime is 2169602867. The reversal of 2169602842 is 2482069612.

It can be written as a sum of positive squares in only one way, i.e., 2166064681 + 3538161 = 46541^2 + 1881^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2169602795 and 2169602804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4482409 + ... + 4482892.

Almost surely, 2^2169602842 is an apocalyptic number.

2169602842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2169602842 is a deficient number, since it is larger than the sum of its proper divisors (1407552656).

2169602842 is a wasteful number, since it uses less digits than its factorization.

2169602842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8965325 (or 8965314 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 2169602842 is about 46578.9957169538. The cubic root of 2169602842 is about 1294.5736022075.

The spelling of 2169602842 in words is "two billion, one hundred sixty-nine million, six hundred two thousand, eight hundred forty-two".