3085742938 has 4 divisors (see below), whose sum is σ = 4628614410. Its totient is φ = 1542871468.

The previous prime is 3085742929. The next prime is 3085742939. The reversal of 3085742938 is 8392475803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8392475803 = 1783 ⋅4706941.

It can be written as a sum of positive squares in only one way, i.e., 1958328009 + 1127414929 = 44253^2 + 33577^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3085742891 and 3085742900.

It is not an unprimeable number, because it can be changed into a prime (3085742939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771435733 + ... + 771435736.

Almost surely, 2^3085742938 is an apocalyptic number.

3085742938 is a deficient number, since it is larger than the sum of its proper divisors (1542871472).

3085742938 is a wasteful number, since it uses less digits than its factorization.

3085742938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542871471.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The square root of 3085742938 is about 55549.4638858018. The cubic root of 3085742938 is about 1455.8610080081.

The spelling of 3085742938 in words is "three billion, eighty-five million, seven hundred forty-two thousand, nine hundred thirty-eight".