1938575268 has 72 divisors (see below), whose sum is σ = 5807768512. Its totient is φ = 553876704.

The previous prime is 1938575231. The next prime is 1938575279. The reversal of 1938575268 is 8625758391.

1938575268 is a `hidden beast` number, since 1 + 9 + 3 + 8 + 575 + 2 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135655 + ... + 149262.

Almost surely, 2^1938575268 is an apocalyptic number.

1938575268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1938575268 is an abundant number, since it is smaller than the sum of its proper divisors (3869193244).

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

1938575268 is a wasteful number, since it uses less digits than its factorization.

1938575268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284943 (or 284929 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 1938575268 is about 44029.2546836759. The cubic root of 1938575268 is about 1246.8883175467. Note that the first 3 decimals are identical.

The spelling of 1938575268 in words is "one billion, nine hundred thirty-eight million, five hundred seventy-five thousand, two hundred sixty-eight".