1930381028 has 6 divisors (see below), whose sum is σ = 3378166806. Its totient is φ = 965190512.

The previous prime is 1930381009. The next prime is 1930381031. The reversal of 1930381028 is 8201830391.

It can be written as a sum of positive squares in only one way, i.e., 1739056804 + 191324224 = 41702^2 + 13832^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 241297625 + ... + 241297632.

It is an arithmetic number, because the mean of its divisors is an integer number (563027801).

Almost surely, 2^1930381028 is an apocalyptic number.

It is an amenable number.

1930381028 is a deficient number, since it is larger than the sum of its proper divisors (1447785778).

1930381028 is a wasteful number, since it uses less digits than its factorization.

1930381028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482595261 (or 482595259 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1930381028 is about 43936.1016477338. The cubic root of 1930381028 is about 1245.1289959512.

The spelling of 1930381028 in words is "one billion, nine hundred thirty million, three hundred eighty-one thousand, twenty-eight".