30505449 has 8 divisors (see below), whose sum is σ = 43802752. Its totient is φ = 18772560.

The previous prime is 30505421. The next prime is 30505481. The reversal of 30505449 is 94450503.

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

It is not a de Polignac number, because 30505449 - 2¹² = 30501353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30505499) 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, 391057 + ... + 391134.

It is an arithmetic number, because the mean of its divisors is an integer number (5475344).

Almost surely, 2^30505449 is an apocalyptic number.

30505449 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

30505449 is a deficient number, since it is larger than the sum of its proper divisors (13297303).

30505449 is a wasteful number, since it uses less digits than its factorization.

30505449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782207.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 30505449 is about 5523.1738158418. The cubic root of 30505449 is about 312.4585937673.

The spelling of 30505449 in words is "thirty million, five hundred five thousand, four hundred forty-nine".