2472021 has 24 divisors (see below), whose sum is σ = 3841344. Its totient is φ = 1526400.

The previous prime is 2471993. The next prime is 2472023. The reversal of 2472021 is 1202742.

2472021 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 2472021 - 2¹⁹ = 1947733 is a prime.

It is a super-2 number, since 2×2472021² = 12221775648882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2471985 and 2472003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2472023) 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 23 ways as a sum of consecutive naturals, for example, 16296 + ... + 16446.

It is an arithmetic number, because the mean of its divisors is an integer number (160056).

2^2472021 is an apocalyptic number.

It is an amenable number.

2472021 is a deficient number, since it is larger than the sum of its proper divisors (1369323).

2472021 is a wasteful number, since it uses less digits than its factorization.

2472021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 2472021 is about 1572.2661988353. The cubic root of 2472021 is about 135.2126689166.

Adding to 2472021 its reverse (1202742), we get a palindrome (3674763).

The spelling of 2472021 in words is "two million, four hundred seventy-two thousand, twenty-one".