331998001 has 8 divisors (see below), whose sum is σ = 349685600. Its totient is φ = 314331840.

The previous prime is 331997971. The next prime is 331998011. The reversal of 331998001 is 100899133.

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

It is a cyclic number.

It is not a de Polignac number, because 331998001 - 2⁹ = 331997489 is a prime.

It is a super-2 number, since 2×331998001² = 220445345335992002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331998011) 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, 33865 + ... + 42553.

It is an arithmetic number, because the mean of its divisors is an integer number (43710700).

Almost surely, 2^331998001 is an apocalyptic number.

It is an amenable number.

331998001 is a deficient number, since it is larger than the sum of its proper divisors (17687599).

331998001 is a wasteful number, since it uses less digits than its factorization.

331998001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10719.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 331998001 is about 18220.8123035171. The cubic root of 331998001 is about 692.4341675223.

The spelling of 331998001 in words is "three hundred thirty-one million, nine hundred ninety-eight thousand, one".