7400005 has 4 divisors (see below), whose sum is σ = 8880012. Its totient is φ = 5920000.

The previous prime is 7399993. The next prime is 7400011. The reversal of 7400005 is 5000047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5000047 = 13 ⋅384619.

It can be written as a sum of positive squares in 2 ways, for example, as 933156 + 6466849 = 966^2 + 2543^2 .

It is not a de Polignac number, because 7400005 - 2¹⁵ = 7367237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739996 + ... + 740005.

It is an arithmetic number, because the mean of its divisors is an integer number (2220003).

Almost surely, 2^7400005 is an apocalyptic number.

It is an amenable number.

7400005 is a deficient number, since it is larger than the sum of its proper divisors (1480007).

7400005 is a wasteful number, since it uses less digits than its factorization.

7400005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480006.

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 7400005 is about 2720.2950207652. The cubic root of 7400005 is about 194.8695599270.

The spelling of 7400005 in words is "seven million, four hundred thousand, five".