4001598 has 12 divisors (see below), whose sum is σ = 8670168. Its totient is φ = 1333860.

The previous prime is 4001597. The next prime is 4001603. The reversal of 4001598 is 8951004.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111138 + ... + 111173.

It is an arithmetic number, because the mean of its divisors is an integer number (722514).

Almost surely, 2^4001598 is an apocalyptic number.

4001598 is an abundant number, since it is smaller than the sum of its proper divisors (4668570).

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

4001598 is a wasteful number, since it uses less digits than its factorization.

4001598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222319 (or 222316 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 4001598 is about 2000.3994601079. The cubic root of 4001598 is about 158.7612412731.

The spelling of 4001598 in words is "four million, one thousand, five hundred ninety-eight".