198525406 has 16 divisors (see below), whose sum is σ = 303217200. Its totient is φ = 97469568.

The previous prime is 198525389. The next prime is 198525407. The reversal of 198525406 is 604525891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198525407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20605 + ... + 28663.

It is an arithmetic number, because the mean of its divisors is an integer number (18951075).

Almost surely, 2^198525406 is an apocalyptic number.

198525406 is a deficient number, since it is larger than the sum of its proper divisors (104691794).

198525406 is a wasteful number, since it uses less digits than its factorization.

198525406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8283.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 198525406 is about 14089.9043999596. The cubic root of 198525406 is about 583.3627545070.

The spelling of 198525406 in words is "one hundred ninety-eight million, five hundred twenty-five thousand, four hundred six".