1928071928 has 16 divisors (see below), whose sum is σ = 3618827280. Its totient is φ = 963051328.

The previous prime is 1928071927. The next prime is 1928071933. The reversal of 1928071928 is 8291708291.

It is a super-2 number, since 2×1928071928² = 7434922719083274368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1928071927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114725 + ... + 130452.

It is an arithmetic number, because the mean of its divisors is an integer number (226176705).

Almost surely, 2^1928071928 is an apocalyptic number.

It is an amenable number.

1928071928 is a deficient number, since it is larger than the sum of its proper divisors (1690755352).

1928071928 is a wasteful number, since it uses less digits than its factorization.

1928071928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246166 (or 246162 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 1928071928 is about 43909.8158502174. The cubic root of 1928071928 is about 1244.6323281114.

The spelling of 1928071928 in words is "one billion, nine hundred twenty-eight million, seventy-one thousand, nine hundred twenty-eight".