1928187242 has 8 divisors (see below), whose sum is σ = 2892511296. Its totient is φ = 964016812.

The previous prime is 1928187229. The next prime is 1928187269. The reversal of 1928187242 is 2427818291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1928187193 and 1928187202.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1103 + ... + 62109.

It is an arithmetic number, because the mean of its divisors is an integer number (361563912).

Almost surely, 2^1928187242 is an apocalyptic number.

1928187242 is a deficient number, since it is larger than the sum of its proper divisors (964324054).

1928187242 is a wasteful number, since it uses less digits than its factorization.

1928187242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76812.

The product of its digits is 129024, while the sum is 44.

The square root of 1928187242 is about 43911.1289082847. The cubic root of 1928187242 is about 1244.6571405798.

The spelling of 1928187242 in words is "one billion, nine hundred twenty-eight million, one hundred eighty-seven thousand, two hundred forty-two".