7440319 has 2 divisors, whose sum is σ = 7440320. Its totient is φ = 7440318.

The previous prime is 7440317. The next prime is 7440347. The reversal of 7440319 is 9130447.

It is an a-pointer prime, because the next prime (7440347) can be obtained adding 7440319 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7440319 - 2¹ = 7440317 is a prime.

It is a super-2 number, since 2×7440319² = 110716693643522, which contains 22 as substring.

Together with 7440317, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7440317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3720159 + 3720160.

It is an arithmetic number, because the mean of its divisors is an integer number (3720160).

Almost surely, 2^7440319 is an apocalyptic number.

7440319 is a deficient number, since it is larger than the sum of its proper divisors (1).

7440319 is an equidigital number, since it uses as much as digits as its factorization.

7440319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 7440319 is about 2727.6948143075. The cubic root of 7440319 is about 195.2227916005. Note that the first 3 decimals are identical.

The spelling of 7440319 in words is "seven million, four hundred forty thousand, three hundred nineteen".