198538732 has 24 divisors (see below), whose sum is σ = 397375776. Its totient is φ = 85024128.

The previous prime is 198538729. The next prime is 198538759. The reversal of 198538732 is 237835891.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72378 + ... + 75070.

It is an arithmetic number, because the mean of its divisors is an integer number (16557324).

Almost surely, 2^198538732 is an apocalyptic number.

It is an amenable number.

198538732 is an abundant number, since it is smaller than the sum of its proper divisors (198837044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198538732 is a wasteful number, since it uses less digits than its factorization.

198538732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337 (or 5335 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 198538732 is about 14090.3772838061. The cubic root of 198538732 is about 583.3758069391.

The spelling of 198538732 in words is "one hundred ninety-eight million, five hundred thirty-eight thousand, seven hundred thirty-two".