189406274 has 16 divisors (see below), whose sum is σ = 291102336. Its totient is φ = 92400000.

The previous prime is 189406247. The next prime is 189406277. The reversal of 189406274 is 472604981.

It is not an unprimeable number, because it can be changed into a prime (189406277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6899 + ... + 20649.

It is an arithmetic number, because the mean of its divisors is an integer number (18193896).

Almost surely, 2^189406274 is an apocalyptic number.

189406274 is a deficient number, since it is larger than the sum of its proper divisors (101696062).

189406274 is a wasteful number, since it uses less digits than its factorization.

189406274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13921.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 189406274 is about 13762.4951952762. The cubic root of 189406274 is about 574.2902638247.

The spelling of 189406274 in words is "one hundred eighty-nine million, four hundred six thousand, two hundred seventy-four".