188097442 has 8 divisors (see below), whose sum is σ = 303849756. Its totient is φ = 86814192.

The previous prime is 188097439. The next prime is 188097457. The reversal of 188097442 is 244790881.

It can be written as a sum of positive squares in 2 ways, for example, as 157527601 + 30569841 = 12551^2 + 5529^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3617233 + ... + 3617284.

Almost surely, 2^188097442 is an apocalyptic number.

188097442 is a deficient number, since it is larger than the sum of its proper divisors (115752314).

188097442 is a wasteful number, since it uses less digits than its factorization.

188097442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7234532.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 188097442 is about 13714.8620846146. The cubic root of 188097442 is about 572.9643881797.

The spelling of 188097442 in words is "one hundred eighty-eight million, ninety-seven thousand, four hundred forty-two".