208330642939 has 16 divisors (see below), whose sum is σ = 226708746880. Its totient is φ = 190788514560.

The previous prime is 208330642931. The next prime is 208330642957. The reversal of 208330642939 is 939246033802.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 208330642939 - 2³ = 208330642931 is a prime.

It is a super-2 number, since 2×208330642939² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 208330642892 and 208330642901.

It is not an unprimeable number, because it can be changed into a prime (208330642931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1235157 + ... + 1393654.

It is an arithmetic number, because the mean of its divisors is an integer number (14169296680).

Almost surely, 2^208330642939 is an apocalyptic number.

208330642939 is a deficient number, since it is larger than the sum of its proper divisors (18378103941).

208330642939 is a wasteful number, since it uses less digits than its factorization.

208330642939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628970.

The product of its (nonzero) digits is 1679616, while the sum is 49.

The spelling of 208330642939 in words is "two hundred eight billion, three hundred thirty million, six hundred forty-two thousand, nine hundred thirty-nine".