30496389 has 16 divisors (see below), whose sum is σ = 50695680. Its totient is φ = 15842160.

The previous prime is 30496379. The next prime is 30496393. The reversal of 30496389 is 98369403.

It is not a de Polignac number, because 30496389 - 2⁵ = 30496357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30496389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30496309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65779 + ... + 66240.

It is an arithmetic number, because the mean of its divisors is an integer number (3168480).

Almost surely, 2^30496389 is an apocalyptic number.

It is an amenable number.

30496389 is a deficient number, since it is larger than the sum of its proper divisors (20199291).

30496389 is a wasteful number, since it uses less digits than its factorization.

30496389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132040.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 30496389 is about 5522.3535743377. The cubic root of 30496389 is about 312.4276577077.

The spelling of 30496389 in words is "thirty million, four hundred ninety-six thousand, three hundred eighty-nine".