7440003445 has 24 divisors (see below), whose sum is σ = 10394508600. Its totient is φ = 5097359232.

The previous prime is 7440003443. The next prime is 7440003479. The reversal of 7440003445 is 5443000447.

It can be written as a sum of positive squares in 4 ways, for example, as 3430327761 + 4009675684 = 58569^2 + 63322^2 .

It is not a de Polignac number, because 7440003445 - 2¹ = 7440003443 is a prime.

It is a super-2 number, since 2×7440003445² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7440003443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288751 + ... + 313459.

It is an arithmetic number, because the mean of its divisors is an integer number (433104525).

Almost surely, 2^7440003445 is an apocalyptic number.

It is an amenable number.

7440003445 is a deficient number, since it is larger than the sum of its proper divisors (2954505155).

7440003445 is a wasteful number, since it uses less digits than its factorization.

7440003445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25957 (or 25950 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 7440003445 is about 86255.4545811452. The cubic root of 7440003445 is about 1952.2003166510.

The spelling of 7440003445 in words is "seven billion, four hundred forty million, three thousand, four hundred forty-five".