2021454043 has 8 divisors (see below), whose sum is σ = 2327097312. Its totient is φ = 1720026816.

The previous prime is 2021454013. The next prime is 2021454053. The reversal of 2021454043 is 3404541202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2021454043 - 2⁹ = 2021453531 is a prime.

It is a super-2 number, since 2×2021454043² = 8172552895922091698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021453999 and 2021454017.

It is not an unprimeable number, because it can be changed into a prime (2021454013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052980 + ... + 1054897.

It is an arithmetic number, because the mean of its divisors is an integer number (290887164).

Almost surely, 2^2021454043 is an apocalyptic number.

2021454043 is a deficient number, since it is larger than the sum of its proper divisors (305643269).

2021454043 is a wasteful number, since it uses less digits than its factorization.

2021454043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108021.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2021454043 is about 44960.5832146337. The cubic root of 2021454043 is about 1264.4101032935.

Adding to 2021454043 its reverse (3404541202), we get a palindrome (5425995245).

It can be divided in two parts, 202145 and 4043, that multiplied together give a triangular number (817272235 = T₄₀₄₂₉).

The spelling of 2021454043 in words is "two billion, twenty-one million, four hundred fifty-four thousand, forty-three".