2021454 has 12 divisors (see below), whose sum is σ = 4379856. Its totient is φ = 673812.

The previous prime is 2021431. The next prime is 2021471. The reversal of 2021454 is 4541202.

It is a Smith number, since the sum of its digits (18) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 112303 = 2021454 / (2 + 0 + 2 + 1 + 4 + 5 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56134 + ... + 56169.

It is an arithmetic number, because the mean of its divisors is an integer number (364988).

2^2021454 is an apocalyptic number.

2021454 is an abundant number, since it is smaller than the sum of its proper divisors (2358402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021454 is a wasteful number, since it uses less digits than its factorization.

2021454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112311 (or 112308 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2021454 is about 1421.7784637559. The cubic root of 2021454 is about 126.4410094328.

Adding to 2021454 its reverse (4541202), we get a palindrome (6562656).

The spelling of 2021454 in words is "two million, twenty-one thousand, four hundred fifty-four".