189333946 has 4 divisors (see below), whose sum is σ = 284000922. Its totient is φ = 94666972.

The previous prime is 189333923. The next prime is 189333959. The reversal of 189333946 is 649333981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649333981 = 421 ⋅1542361.

It can be written as a sum of positive squares in only one way, i.e., 140683321 + 48650625 = 11861^2 + 6975^2 .

It is a junction number, because it is equal to n+sod(n) for n = 189333896 and 189333905.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47333485 + ... + 47333488.

Almost surely, 2^189333946 is an apocalyptic number.

189333946 is a deficient number, since it is larger than the sum of its proper divisors (94666976).

189333946 is an equidigital number, since it uses as much as digits as its factorization.

189333946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94666975.

The product of its digits is 419904, while the sum is 46.

The square root of 189333946 is about 13759.8672231966. The cubic root of 189333946 is about 574.2171536901.

The spelling of 189333946 in words is "one hundred eighty-nine million, three hundred thirty-three thousand, nine hundred forty-six".