198725426 has 8 divisors (see below), whose sum is σ = 298199340. Its totient is φ = 99325648.

The previous prime is 198725413. The next prime is 198725437. The reversal of 198725426 is 624527891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 175695025 + 23030401 = 13255^2 + 4799^2 .

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

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, 11261 + ... + 22896.

Almost surely, 2^198725426 is an apocalyptic number.

198725426 is a deficient number, since it is larger than the sum of its proper divisors (99473914).

198725426 is a wasteful number, since it uses less digits than its factorization.

198725426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37068.

The product of its digits is 241920, while the sum is 44.

The square root of 198725426 is about 14097.0006029652. Note that the first 3 decimals coincide. The cubic root of 198725426 is about 583.5586069420.

The spelling of 198725426 in words is "one hundred ninety-eight million, seven hundred twenty-five thousand, four hundred twenty-six".