7138330 has 8 divisors (see below), whose sum is σ = 12849012. Its totient is φ = 2855328.

The previous prime is 7138309. The next prime is 7138331. The reversal of 7138330 is 338317.

It can be written as a sum of positive squares in 2 ways, for example, as 6985449 + 152881 = 2643^2 + 391^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 7138295 and 7138304.

It is not an unprimeable number, because it can be changed into a prime (7138331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356907 + ... + 356926.

Almost surely, 2^7138330 is an apocalyptic number.

7138330 is a deficient number, since it is larger than the sum of its proper divisors (5710682).

7138330 is a wasteful number, since it uses less digits than its factorization.

7138330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713840.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 7138330 is about 2671.7653340067. The cubic root of 7138330 is about 192.5449830222.

The spelling of 7138330 in words is "seven million, one hundred thirty-eight thousand, three hundred thirty".