189450542 has 8 divisors (see below), whose sum is σ = 285450816. Its totient is φ = 94300272.

The previous prime is 189450529. The next prime is 189450551. The reversal of 189450542 is 245054981.

189450542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 189450496 and 189450505.

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, 211943 + ... + 212834.

It is an arithmetic number, because the mean of its divisors is an integer number (35681352).

Almost surely, 2^189450542 is an apocalyptic number.

189450542 is a deficient number, since it is larger than the sum of its proper divisors (96000274).

189450542 is a wasteful number, since it uses less digits than its factorization.

189450542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425002.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 189450542 is about 13764.1033852554. The cubic root of 189450542 is about 574.3350013450.

The spelling of 189450542 in words is "one hundred eighty-nine million, four hundred fifty thousand, five hundred forty-two".