30409449 has 24 divisors (see below), whose sum is σ = 48449088. Its totient is φ = 16904160.

The previous prime is 30409441. The next prime is 30409451. The reversal of 30409449 is 94490403.

It is a happy number.

It is not a de Polignac number, because 30409449 - 2³ = 30409441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30409441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2644 + ... + 8234.

It is an arithmetic number, because the mean of its divisors is an integer number (2018712).

Almost surely, 2^30409449 is an apocalyptic number.

It is an amenable number.

30409449 is a deficient number, since it is larger than the sum of its proper divisors (18039639).

30409449 is a wasteful number, since it uses less digits than its factorization.

30409449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5645 (or 5638 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 30409449 is about 5514.4763123981. The cubic root of 30409449 is about 312.1304824873.

The spelling of 30409449 in words is "thirty million, four hundred nine thousand, four hundred forty-nine".