188389748 has 12 divisors (see below), whose sum is σ = 333654720. Its totient is φ = 93059832.

The previous prime is 188389741. The next prime is 188389753. The reversal of 188389748 is 847983881.

It is a junction number, because it is equal to n+sod(n) for n = 188389693 and 188389702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188389741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283388 + ... + 284051.

It is an arithmetic number, because the mean of its divisors is an integer number (27804560).

Almost surely, 2^188389748 is an apocalyptic number.

It is an amenable number.

188389748 is a deficient number, since it is larger than the sum of its proper divisors (145264972).

188389748 is a wasteful number, since it uses less digits than its factorization.

188389748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567526 (or 567524 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 56.

The square root of 188389748 is about 13725.5144894463. The cubic root of 188389748 is about 573.2610327373.

The spelling of 188389748 in words is "one hundred eighty-eight million, three hundred eighty-nine thousand, seven hundred forty-eight".