1928908395 has 12 divisors (see below), whose sum is σ = 3343441296. Its totient is φ = 1028751120.

The previous prime is 1928908391. The next prime is 1928908411. The reversal of 1928908395 is 5938098291.

It is not a de Polignac number, because 1928908395 - 2² = 1928908391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1928908391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21432271 + ... + 21432360.

It is an arithmetic number, because the mean of its divisors is an integer number (278620108).

Almost surely, 2^1928908395 is an apocalyptic number.

1928908395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1928908395 is a deficient number, since it is larger than the sum of its proper divisors (1414532901).

1928908395 is a wasteful number, since it uses less digits than its factorization.

1928908395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42864642 (or 42864639 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The square root of 1928908395 is about 43919.3396466750. The cubic root of 1928908395 is about 1244.8122908566.

The spelling of 1928908395 in words is "one billion, nine hundred twenty-eight million, nine hundred eight thousand, three hundred ninety-five".