3752421 has 16 divisors (see below), whose sum is σ = 5160960. Its totient is φ = 2424240.

The previous prime is 3752407. The next prime is 3752431. The reversal of 3752421 is 1242573.

3752421 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 3752421 - 2⁵ = 3752389 is a prime.

It is a super-2 number, since 2×3752421² = 28161326722482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3752391 and 3752400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3752401) 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 15 ways as a sum of consecutive naturals, for example, 16716 + ... + 16938.

It is an arithmetic number, because the mean of its divisors is an integer number (322560).

Almost surely, 2^3752421 is an apocalyptic number.

It is an amenable number.

3752421 is a deficient number, since it is larger than the sum of its proper divisors (1408539).

3752421 is a wasteful number, since it uses less digits than its factorization.

3752421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376.

The product of its digits is 1680, while the sum is 24.

The square root of 3752421 is about 1937.1166717573. The cubic root of 3752421 is about 155.3950519271.

Adding to 3752421 its reverse (1242573), we get a palindrome (4994994).

The spelling of 3752421 in words is "three million, seven hundred fifty-two thousand, four hundred twenty-one".