30440448 has 110 divisors (see below), whose sum is σ = 91148816. Its totient is φ = 10119168.

The previous prime is 30440437. The next prime is 30440479. The reversal of 30440448 is 84404403.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 82761 + ... + 83127.

Almost surely, 2^30440448 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 30440448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45574408).

30440448 is an abundant number, since it is smaller than the sum of its proper divisors (60708368).

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

30440448 is an equidigital number, since it uses as much as digits as its factorization.

30440448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 30440448 is about 5517.2862894724. The cubic root of 30440448 is about 312.2365070645.

The spelling of 30440448 in words is "thirty million, four hundred forty thousand, four hundred forty-eight".