2128486 has 4 divisors (see below), whose sum is σ = 3192732. Its totient is φ = 1064242.

The previous prime is 2128481. The next prime is 2128487. The reversal of 2128486 is 6848212.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532120 + ... + 532123.

It is an arithmetic number, because the mean of its divisors is an integer number (798183).

2^2128486 is an apocalyptic number.

2128486 is a deficient number, since it is larger than the sum of its proper divisors (1064246).

2128486 is a wasteful number, since it uses less digits than its factorization.

2128486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064245.

The product of its digits is 6144, while the sum is 31.

The square root of 2128486 is about 1458.9331718759. The cubic root of 2128486 is about 128.6343429889.

The spelling of 2128486 in words is "two million, one hundred twenty-eight thousand, four hundred eighty-six".