30407138 has 8 divisors (see below), whose sum is σ = 47183580. Its totient is φ = 14679280.

The previous prime is 30407129. The next prime is 30407141. The reversal of 30407138 is 83170403.

It can be written as a sum of positive squares in 2 ways, for example, as 30327049 + 80089 = 5507^2 + 283^2 .

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

It is an unprimeable number.

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, 262073 + ... + 262188.

Almost surely, 2^30407138 is an apocalyptic number.

30407138 is a deficient number, since it is larger than the sum of its proper divisors (16776442).

30407138 is a wasteful number, since it uses less digits than its factorization.

30407138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524292.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 30407138 is about 5514.2667690274. The cubic root of 30407138 is about 312.1225753856.

The spelling of 30407138 in words is "thirty million, four hundred seven thousand, one hundred thirty-eight".