30498994 has 4 divisors (see below), whose sum is σ = 45748494. Its totient is φ = 15249496.

The previous prime is 30498991. The next prime is 30499013. The reversal of 30498994 is 49989403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49989403 = 283 ⋅176641.

It can be written as a sum of positive squares in only one way, i.e., 15960025 + 14538969 = 3995^2 + 3813^2 .

It is not an unprimeable number, because it can be changed into a prime (30498991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7624747 + ... + 7624750.

Almost surely, 2^30498994 is an apocalyptic number.

30498994 is a deficient number, since it is larger than the sum of its proper divisors (15249500).

30498994 is a wasteful number, since it uses less digits than its factorization.

30498994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15249499.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 30498994 is about 5522.5894288821. The cubic root of 30498994 is about 312.4365533060.

The spelling of 30498994 in words is "thirty million, four hundred ninety-eight thousand, nine hundred ninety-four".