188390050 has 12 divisors (see below), whose sum is σ = 350405586. Its totient is φ = 75356000.

The previous prime is 188390047. The next prime is 188390057. The reversal of 188390050 is 50093881.

188390050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 102030201 + 86359849 = 10101^2 + 9293^2 .

It is a junction number, because it is equal to n+sod(n) for n = 188389988 and 188390015.

It is not an unprimeable number, because it can be changed into a prime (188390057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1883851 + ... + 1883950.

Almost surely, 2^188390050 is an apocalyptic number.

188390050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188390050 is a deficient number, since it is larger than the sum of its proper divisors (162015536).

188390050 is a wasteful number, since it uses less digits than its factorization.

188390050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767813 (or 3767808 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 188390050 is about 13725.5254908510. The cubic root of 188390050 is about 573.2613390610.

The spelling of 188390050 in words is "one hundred eighty-eight million, three hundred ninety thousand, fifty".