2128454 has 8 divisors (see below), whose sum is σ = 3212760. Its totient is φ = 1057536.

The previous prime is 2128453. The next prime is 2128463. The reversal of 2128454 is 4548212.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2939 + ... + 3590.

It is an arithmetic number, because the mean of its divisors is an integer number (401595).

2^2128454 is an apocalyptic number.

2128454 is a deficient number, since it is larger than the sum of its proper divisors (1084306).

2128454 is a wasteful number, since it uses less digits than its factorization.

2128454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6694.

The product of its digits is 2560, while the sum is 26.

The square root of 2128454 is about 1458.9222049170. The cubic root of 2128454 is about 128.6336983492.

The spelling of 2128454 in words is "two million, one hundred twenty-eight thousand, four hundred fifty-four".