189400342 has 8 divisors (see below), whose sum is σ = 284575032. Its totient is φ = 94542000.

The previous prime is 189400339. The next prime is 189400397. The reversal of 189400342 is 243004981.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 77584 + ... + 79987.

It is an arithmetic number, because the mean of its divisors is an integer number (35571879).

Almost surely, 2^189400342 is an apocalyptic number.

189400342 is a deficient number, since it is larger than the sum of its proper divisors (95174690).

189400342 is a wasteful number, since it uses less digits than its factorization.

189400342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158174.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 189400342 is about 13762.2796803437. The cubic root of 189400342 is about 574.2842683784.

The spelling of 189400342 in words is "one hundred eighty-nine million, four hundred thousand, three hundred forty-two".