30378998 has 32 divisors (see below), whose sum is σ = 52629696. Its totient is φ = 13039488.

The previous prime is 30378947. The next prime is 30379001. The reversal of 30378998 is 89987303.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 21440 + ... + 22812.

It is an arithmetic number, because the mean of its divisors is an integer number (1644678).

Almost surely, 2^30378998 is an apocalyptic number.

30378998 is a deficient number, since it is larger than the sum of its proper divisors (22250698).

30378998 is a wasteful number, since it uses less digits than its factorization.

30378998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 30378998 is about 5511.7146152536. The cubic root of 30378998 is about 312.0262620344.

The spelling of 30378998 in words is "thirty million, three hundred seventy-eight thousand, nine hundred ninety-eight".