189540346 has 8 divisors (see below), whose sum is σ = 294114420. Its totient is φ = 91502208.

The previous prime is 189540343. The next prime is 189540347. The reversal of 189540346 is 643045981.

It can be written as a sum of positive squares in 2 ways, for example, as 170955625 + 18584721 = 13075^2 + 4311^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 189540299 and 189540308.

It is not an unprimeable number, because it can be changed into a prime (189540343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1633911 + ... + 1634026.

Almost surely, 2^189540346 is an apocalyptic number.

189540346 is a deficient number, since it is larger than the sum of its proper divisors (104574074).

189540346 is a wasteful number, since it uses less digits than its factorization.

189540346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3267968.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 189540346 is about 13767.3652526546. The cubic root of 189540346 is about 574.4257364297.

The spelling of 189540346 in words is "one hundred eighty-nine million, five hundred forty thousand, three hundred forty-six".