4001289 has 8 divisors (see below), whose sum is σ = 5359872. Its totient is φ = 2655120.

The previous prime is 4001269. The next prime is 4001303. The reversal of 4001289 is 9821004.

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

It is not a de Polignac number, because 4001289 - 2¹⁵ = 3968521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4001219) 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, 2322 + ... + 3659.

It is an arithmetic number, because the mean of its divisors is an integer number (669984).

Almost surely, 2^4001289 is an apocalyptic number.

It is an amenable number.

4001289 is a deficient number, since it is larger than the sum of its proper divisors (1358583).

4001289 is a wasteful number, since it uses less digits than its factorization.

4001289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6207.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 4001289 is about 2000.3222240429. The cubic root of 4001289 is about 158.7571546985.

The spelling of 4001289 in words is "four million, one thousand, two hundred eighty-nine".