7438330 has 8 divisors (see below), whose sum is σ = 13389012. Its totient is φ = 2975328.

The previous prime is 7438309. The next prime is 7438331. The reversal of 7438330 is 338347.

It can be written as a sum of positive squares in 2 ways, for example, as 7392961 + 45369 = 2719^2 + 213^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7438331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371907 + ... + 371926.

Almost surely, 2^7438330 is an apocalyptic number.

7438330 is a deficient number, since it is larger than the sum of its proper divisors (5950682).

7438330 is a wasteful number, since it uses less digits than its factorization.

7438330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743840.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 7438330 is about 2727.3301963642. The cubic root of 7438330 is about 195.2053939262.

The spelling of 7438330 in words is "seven million, four hundred thirty-eight thousand, three hundred thirty".