1938649848 has 32 divisors (see below), whose sum is σ = 4928774400. Its totient is φ = 635263328.

The previous prime is 1938649807. The next prime is 1938649879. The reversal of 1938649848 is 8489468391.

It is a junction number, because it is equal to n+sod(n) for n = 1938649791 and 1938649800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683136 + ... + 685967.

It is an arithmetic number, because the mean of its divisors is an integer number (154024200).

Almost surely, 2^1938649848 is an apocalyptic number.

It is an amenable number.

1938649848 is an abundant number, since it is smaller than the sum of its proper divisors (2990124552).

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

1938649848 is a wasteful number, since it uses less digits than its factorization.

1938649848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369171 (or 1369167 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 60.

The square root of 1938649848 is about 44030.1016124197. The cubic root of 1938649848 is about 1246.9043072514.

The spelling of 1938649848 in words is "one billion, nine hundred thirty-eight million, six hundred forty-nine thousand, eight hundred forty-eight".