30499479 has 12 divisors (see below), whose sum is σ = 46646496. Its totient is φ = 19136832.

The previous prime is 30499477. The next prime is 30499481. The reversal of 30499479 is 97499403.

It is an interprime number because it is at equal distance from previous prime (30499477) and next prime (30499481).

It is not a de Polignac number, because 30499479 - 2¹ = 30499477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30499471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99519 + ... + 99824.

It is an arithmetic number, because the mean of its divisors is an integer number (3887208).

Almost surely, 2^30499479 is an apocalyptic number.

30499479 is a deficient number, since it is larger than the sum of its proper divisors (16147017).

30499479 is a wasteful number, since it uses less digits than its factorization.

30499479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199366 (or 199363 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 30499479 is about 5522.6333392685. The cubic root of 30499479 is about 312.4382094363.

The spelling of 30499479 in words is "thirty million, four hundred ninety-nine thousand, four hundred seventy-nine".