1928922428 has 12 divisors (see below), whose sum is σ = 3375959160. Its totient is φ = 964362672.

The previous prime is 1928922397. The next prime is 1928922461. The reversal of 1928922428 is 8242298291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35975 + ... + 71777.

It is an arithmetic number, because the mean of its divisors is an integer number (281329930).

Almost surely, 2^1928922428 is an apocalyptic number.

It is an amenable number.

1928922428 is a deficient number, since it is larger than the sum of its proper divisors (1447036732).

1928922428 is a wasteful number, since it uses less digits than its factorization.

1928922428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49276 (or 49274 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 1928922428 is about 43919.4994051617. The cubic root of 1928922428 is about 1244.8153095602.

The spelling of 1928922428 in words is "one billion, nine hundred twenty-eight million, nine hundred twenty-two thousand, four hundred twenty-eight".