1838485388 has 12 divisors (see below), whose sum is σ = 3223959312. Its totient is φ = 917354160.

The previous prime is 1838485373. The next prime is 1838485403. The reversal of 1838485388 is 8835848381.

It is an interprime number because it is at equal distance from previous prime (1838485373) and next prime (1838485403).

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, 469943 + ... + 473838.

It is an arithmetic number, because the mean of its divisors is an integer number (268663276).

Almost surely, 2^1838485388 is an apocalyptic number.

It is an amenable number.

1838485388 is a deficient number, since it is larger than the sum of its proper divisors (1385473924).

1838485388 is a wasteful number, since it uses less digits than its factorization.

1838485388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944272 (or 944270 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 56.

The square root of 1838485388 is about 42877.5627572277. The cubic root of 1838485388 is about 1225.0488139371.

The spelling of 1838485388 in words is "one billion, eight hundred thirty-eight million, four hundred eighty-five thousand, three hundred eighty-eight".