7440444437 has 2 divisors, whose sum is σ = 7440444438. Its totient is φ = 7440444436.

The previous prime is 7440444419. The next prime is 7440444449. The reversal of 7440444437 is 7344440447.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6221107876 + 1219336561 = 78874^2 + 34919^2 .

It is an emirp because it is prime and its reverse (7344440447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7440444437 - 2¹⁴ = 7440428053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7440444394 and 7440444403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7440444457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3720222218 + 3720222219.

It is an arithmetic number, because the mean of its divisors is an integer number (3720222219).

Almost surely, 2^7440444437 is an apocalyptic number.

It is an amenable number.

7440444437 is a deficient number, since it is larger than the sum of its proper divisors (1).

7440444437 is an equidigital number, since it uses as much as digits as its factorization.

7440444437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 602112, while the sum is 41.

The square root of 7440444437 is about 86258.0108569633. The cubic root of 7440444437 is about 1952.2388868712.

The spelling of 7440444437 in words is "seven billion, four hundred forty million, four hundred forty-four thousand, four hundred thirty-seven".