30403849 has 8 divisors (see below), whose sum is σ = 35085440. Its totient is φ = 25806816.

The previous prime is 30403829. The next prime is 30403873. The reversal of 30403849 is 94830403.

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

It is not a de Polignac number, because 30403849 - 2⁹ = 30403337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30403849.

It is not an unprimeable number, because it can be changed into a prime (30403829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20364 + ... + 21805.

It is an arithmetic number, because the mean of its divisors is an integer number (4385680).

Almost surely, 2^30403849 is an apocalyptic number.

It is an amenable number.

30403849 is a deficient number, since it is larger than the sum of its proper divisors (4681591).

30403849 is a wasteful number, since it uses less digits than its factorization.

30403849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42279.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 30403849 is about 5513.9685345493. The cubic root of 30403849 is about 312.1113213596. Note that the first 3 decimals are identical.

It can be divided in two parts, 3040 and 3849, that added together give a square (6889 = 83²).

The spelling of 30403849 in words is "thirty million, four hundred three thousand, eight hundred forty-nine".