201475998 has 60 divisors (see below), whose sum is σ = 472138128. Its totient is φ = 64211400.

The previous prime is 201475997. The next prime is 201476003. The reversal of 201475998 is 899574102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201475997) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 84523 + ... + 86873.

Almost surely, 2^201475998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201475998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236069064).

201475998 is an abundant number, since it is smaller than the sum of its proper divisors (270662130).

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

201475998 is a wasteful number, since it uses less digits than its factorization.

201475998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 201475998 is about 14194.2241070092. The cubic root of 201475998 is about 586.2386378717.

The spelling of 201475998 in words is "two hundred one million, four hundred seventy-five thousand, nine hundred ninety-eight".