30040248 has 64 divisors (see below), whose sum is σ = 86434560. Its totient is φ = 8522496.

The previous prime is 30040237. The next prime is 30040253. The reversal of 30040248 is 84204003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26836 + ... + 27932.

It is an arithmetic number, because the mean of its divisors is an integer number (1350540).

Almost surely, 2^30040248 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 30040248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43217280).

30040248 is an abundant number, since it is smaller than the sum of its proper divisors (56394312).

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

30040248 is a wasteful number, since it uses less digits than its factorization.

30040248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276 (or 1272 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 30040248 is about 5480.8984664925. The cubic root of 30040248 is about 310.8621439385.

The spelling of 30040248 in words is "thirty million, forty thousand, two hundred forty-eight".