3940198441 has 9 divisors (see below), whose sum is σ = 4041284439. Its totient is φ = 3841585200.

The previous prime is 3940198439. The next prime is 3940198447. The reversal of 3940198441 is 1448910493.

The square root of 3940198441 is 62771.

It is a perfect power (a square), and thus also a powerful number.

3940198441 is digitally balanced in base 2, 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 only one way, i.e., 189860841 + 3750337600 = 13779^2 + 61240^2 .

It is not a de Polignac number, because 3940198441 - 2¹ = 3940198439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3940198447) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2572846 + ... + 2574376.

Almost surely, 2^3940198441 is an apocalyptic number.

3940198441 is the 62771-st square number.

3940198441 is the 31386-th centered octagonal number.

It is an amenable number.

3940198441 is a deficient number, since it is larger than the sum of its proper divisors (101085998).

3940198441 is an frugal number, since it uses more digits than its factorization.

3940198441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144 (or 1572 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The cubic root of 3940198441 is about 1579.4505434690.

It can be divided in two parts, 39401 and 98441, that multiplied together give a square (3878673841 = 62279²).

The spelling of 3940198441 in words is "three billion, nine hundred forty million, one hundred ninety-eight thousand, four hundred forty-one".