188906422 has 8 divisors (see below), whose sum is σ = 284630976. Its totient is φ = 94029432.

The previous prime is 188906413. The next prime is 188906437. The reversal of 188906422 is 224609881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 211333 + ... + 212224.

It is an arithmetic number, because the mean of its divisors is an integer number (35578872).

Almost surely, 2^188906422 is an apocalyptic number.

188906422 is a deficient number, since it is larger than the sum of its proper divisors (95724554).

188906422 is a wasteful number, since it uses less digits than its factorization.

188906422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423782.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 188906422 is about 13744.3232645336. The cubic root of 188906422 is about 573.7846258233.

The spelling of 188906422 in words is "one hundred eighty-eight million, nine hundred six thousand, four hundred twenty-two".