7424138 has 8 divisors (see below), whose sum is σ = 11791332. Its totient is φ = 3493696.

The previous prime is 7424119. The next prime is 7424141. The reversal of 7424138 is 8314247.

It can be written as a sum of positive squares in 2 ways, for example, as 7414729 + 9409 = 2723^2 + 97^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7424138.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109145 + ... + 109212.

Almost surely, 2^7424138 is an apocalyptic number.

7424138 is a deficient number, since it is larger than the sum of its proper divisors (4367194).

7424138 is a wasteful number, since it uses less digits than its factorization.

7424138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218376.

The product of its digits is 5376, while the sum is 29.

The square root of 7424138 is about 2724.7271423025. The cubic root of 7424138 is about 195.0811671744.

The spelling of 7424138 in words is "seven million, four hundred twenty-four thousand, one hundred thirty-eight".