1938288946 has 16 divisors (see below), whose sum is σ = 3173022720. Its totient is φ = 880685680.

The previous prime is 1938288929. The next prime is 1938288967. The reversal of 1938288946 is 6498828391.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42720 + ... + 75508.

It is an arithmetic number, because the mean of its divisors is an integer number (198313920).

Almost surely, 2^1938288946 is an apocalyptic number.

1938288946 is a deficient number, since it is larger than the sum of its proper divisors (1234733774).

1938288946 is a wasteful number, since it uses less digits than its factorization.

1938288946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35489.

The product of its digits is 5971968, while the sum is 58.

The square root of 1938288946 is about 44026.0030663698. The cubic root of 1938288946 is about 1246.8269272496.

The spelling of 1938288946 in words is "one billion, nine hundred thirty-eight million, two hundred eighty-eight thousand, nine hundred forty-six".