7440373 has 8 divisors (see below), whose sum is σ = 7902360. Its totient is φ = 6981120.

The previous prime is 7440347. The next prime is 7440383. The reversal of 7440373 is 3730447.

It can be written as a sum of positive squares in 4 ways, for example, as 3122289 + 4318084 = 1767^2 + 2078^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7440373 - 2¹³ = 7432181 is a prime.

It is a Duffinian number.

7440373 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7440383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8793 + ... + 9601.

It is an arithmetic number, because the mean of its divisors is an integer number (987795).

Almost surely, 2^7440373 is an apocalyptic number.

It is an amenable number.

7440373 is a deficient number, since it is larger than the sum of its proper divisors (461987).

7440373 is a wasteful number, since it uses less digits than its factorization.

7440373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 7440373 is about 2727.7047127576. The cubic root of 7440373 is about 195.2232638923.

The spelling of 7440373 in words is "seven million, four hundred forty thousand, three hundred seventy-three".