30040448 has 32 divisors (see below), whose sum is σ = 61473360. Its totient is φ = 14611968.

The previous prime is 30040441. The next prime is 30040469. The reversal of 30040448 is 84404003.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30040441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1565 + ... + 7907.

Almost surely, 2^30040448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30040448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30736680).

30040448 is an abundant number, since it is smaller than the sum of its proper divisors (31432912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30040448 is an equidigital number, since it uses as much as digits as its factorization.

30040448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6394 (or 6382 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 30040448 is about 5480.9167116460. The cubic root of 30040448 is about 310.8628338161.

The spelling of 30040448 in words is "thirty million, forty thousand, four hundred forty-eight".