1938029216 has 24 divisors (see below), whose sum is σ = 3918618900. Its totient is φ = 942824448.

The previous prime is 1938029183. The next prime is 1938029239. The reversal of 1938029216 is 6129208391.

It can be written as a sum of positive squares in 2 ways, for example, as 1713628816 + 224400400 = 41396^2 + 14980^2 .

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, 817241 + ... + 819608.

Almost surely, 2^1938029216 is an apocalyptic number.

1938029216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1938029216 is an abundant number, since it is smaller than the sum of its proper divisors (1980589684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1938029216 is a wasteful number, since it uses less digits than its factorization.

1938029216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636896 (or 1636888 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 1938029216 is about 44023.0532335048. The cubic root of 1938029216 is about 1246.7712333133.

The spelling of 1938029216 in words is "one billion, nine hundred thirty-eight million, twenty-nine thousand, two hundred sixteen".