189007426 has 4 divisors (see below), whose sum is σ = 283511142. Its totient is φ = 94503712.

The previous prime is 189007393. The next prime is 189007447. The reversal of 189007426 is 624700981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624700981 = 19 ⋅32878999.

It can be written as a sum of positive squares in only one way, i.e., 147598201 + 41409225 = 12149^2 + 6435^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47251855 + ... + 47251858.

Almost surely, 2^189007426 is an apocalyptic number.

189007426 is a deficient number, since it is larger than the sum of its proper divisors (94503716).

189007426 is an equidigital number, since it uses as much as digits as its factorization.

189007426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94503715.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 189007426 is about 13747.9971632234. The cubic root of 189007426 is about 573.8868708322.

The spelling of 189007426 in words is "one hundred eighty-nine million, seven thousand, four hundred twenty-six".