7490305 has 8 divisors (see below), whose sum is σ = 9023400. Its totient is φ = 5968896.

The previous prime is 7490303. The next prime is 7490309. The reversal of 7490305 is 5030947.

It can be written as a sum of positive squares in 4 ways, for example, as 97344 + 7392961 = 312^2 + 2719^2 .

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 7490305 - 2¹ = 7490303 is a prime.

It is a super-2 number, since 2×7490305² = 112209337986050, which contains 22 as substring.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (7490303) 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, 1440 + ... + 4129.

It is an arithmetic number, because the mean of its divisors is an integer number (1127925).

Almost surely, 2^7490305 is an apocalyptic number.

It is an amenable number.

7490305 is a deficient number, since it is larger than the sum of its proper divisors (1533095).

7490305 is a wasteful number, since it uses less digits than its factorization.

7490305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5843.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 7490305 is about 2736.8421584008. The cubic root of 7490305 is about 195.6590020412.

The spelling of 7490305 in words is "seven million, four hundred ninety thousand, three hundred five".