189402058 has 8 divisors (see below), whose sum is σ = 284161860. Its totient is φ = 94681440.

The previous prime is 189402053. The next prime is 189402067. The reversal of 189402058 is 850204981.

It can be written as a sum of positive squares in 2 ways, for example, as 189145009 + 257049 = 13753^2 + 507^2 .

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

It is a super-3 number, since 3×189402058³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (189402053) by changing a digit.

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, 11908 + ... + 22816.

Almost surely, 2^189402058 is an apocalyptic number.

189402058 is a deficient number, since it is larger than the sum of its proper divisors (94759802).

189402058 is a wasteful number, since it uses less digits than its factorization.

189402058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19592.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 189402058 is about 13762.3420245248. The cubic root of 189402058 is about 574.2860027450.

The spelling of 189402058 in words is "one hundred eighty-nine million, four hundred two thousand, fifty-eight".