2052421 has 8 divisors (see below), whose sum is σ = 2369664. Its totient is φ = 1741200.

The previous prime is 2052409. The next prime is 2052431. The reversal of 2052421 is 1242502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2052421 is a prime.

It is a super-2 number, since 2×2052421² = 8424863922482, 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 = 2052395 and 2052404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2052431) 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 7 ways as a sum of consecutive naturals, for example, 745 + ... + 2158.

It is an arithmetic number, because the mean of its divisors is an integer number (296208).

2^2052421 is an apocalyptic number.

It is an amenable number.

2052421 is a deficient number, since it is larger than the sum of its proper divisors (317243).

2052421 is a wasteful number, since it uses less digits than its factorization.

2052421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011.

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

The square root of 2052421 is about 1432.6273067340. The cubic root of 2052421 is about 127.0833973902.

Adding to 2052421 its reverse (1242502), we get a palindrome (3294923).

It can be divided in two parts, 20 and 52421, that added together give a square (52441 = 229²).

The spelling of 2052421 in words is "two million, fifty-two thousand, four hundred twenty-one".