2188401 has 8 divisors (see below), whose sum is σ = 3071520. Its totient is φ = 1382112.

The previous prime is 2188349. The next prime is 2188409. The reversal of 2188401 is 1048812.

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

It is not a de Polignac number, because 2188401 - 2²¹ = 91249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2188409) 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, 19140 + ... + 19253.

It is an arithmetic number, because the mean of its divisors is an integer number (383940).

2^2188401 is an apocalyptic number.

It is an amenable number.

2188401 is a deficient number, since it is larger than the sum of its proper divisors (883119).

2188401 is a wasteful number, since it uses less digits than its factorization.

2188401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38415.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 2188401 is about 1479.3245080103. The cubic root of 2188401 is about 129.8301727177.

The spelling of 2188401 in words is "two million, one hundred eighty-eight thousand, four hundred one".