2452021 has 12 divisors (see below), whose sum is σ = 2898720. Its totient is φ = 2056080.

The previous prime is 2452013. The next prime is 2452033. The reversal of 2452021 is 1202542.

2452021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2452021 - 2³ = 2452013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2451986 and 2452004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2452321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1200 + ... + 2518.

It is an arithmetic number, because the mean of its divisors is an integer number (241560).

2^2452021 is an apocalyptic number.

It is an amenable number.

2452021 is a deficient number, since it is larger than the sum of its proper divisors (446699).

2452021 is a wasteful number, since it uses less digits than its factorization.

2452021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2452021 is about 1565.8930359383. The cubic root of 2452021 is about 134.8470329587.

Subtracting from 2452021 its sum of digits (16), we obtain a triangular number (2452005 = T₂₂₁₄).

Adding to 2452021 its reverse (1202542), we get a palindrome (3654563).

The spelling of 2452021 in words is "two million, four hundred fifty-two thousand, twenty-one".