3772544021 has 6 divisors (see below), whose sum is σ = 3810276066. Its totient is φ = 3735182000.

The previous prime is 3772543991. The next prime is 3772544057. The reversal of 3772544021 is 1204452773.

3772544021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1970116996 + 1802427025 = 44386^2 + 42455^2 .

It is not a de Polignac number, because 3772544021 - 2¹⁴ = 3772527637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3772544071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174710 + ... + 195111.

It is an arithmetic number, because the mean of its divisors is an integer number (635046011).

Almost surely, 2^3772544021 is an apocalyptic number.

It is an amenable number.

3772544021 is a deficient number, since it is larger than the sum of its proper divisors (37732045).

3772544021 is an equidigital number, since it uses as much as digits as its factorization.

3772544021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370023 (or 369922 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 3772544021 is about 61421.0389117605. The cubic root of 3772544021 is about 1556.7233466965.

Adding to 3772544021 its reverse (1204452773), we get a palindrome (4976996794).

The spelling of 3772544021 in words is "three billion, seven hundred seventy-two million, five hundred forty-four thousand, twenty-one".