1939102038 has 64 divisors (see below), whose sum is σ = 4610419200. Its totient is φ = 602290080.

The previous prime is 1939102013. The next prime is 1939102063. The reversal of 1939102038 is 8302019391.

It is an interprime number because it is at equal distance from previous prime (1939102013) and next prime (1939102063).

It is a junction number, because it is equal to n+sod(n) for n = 1939101993 and 1939102011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47095 + ... + 78077.

It is an arithmetic number, because the mean of its divisors is an integer number (72037800).

Almost surely, 2^1939102038 is an apocalyptic number.

1939102038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1939102038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2305209600).

1939102038 is an abundant number, since it is smaller than the sum of its proper divisors (2671317162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1939102038 is a wasteful number, since it uses less digits than its factorization.

1939102038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31074 (or 31068 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1939102038 is about 44035.2363227450. The cubic root of 1939102038 is about 1247.0012465082.

The spelling of 1939102038 in words is "one billion, nine hundred thirty-nine million, one hundred two thousand, thirty-eight".