30441240 has 48 divisors (see below), whose sum is σ = 98935200. Its totient is φ = 8117568.

The previous prime is 30441221. The next prime is 30441283. The reversal of 30441240 is 4214403.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41920 + ... + 42639.

It is an arithmetic number, because the mean of its divisors is an integer number (2061150).

Almost surely, 2^30441240 is an apocalyptic number.

30441240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30441240 is an abundant number, since it is smaller than the sum of its proper divisors (68493960).

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

30441240 is a wasteful number, since it uses less digits than its factorization.

30441240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84576 (or 84569 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 30441240 is about 5517.3580634213. The cubic root of 30441240 is about 312.2392149656.

Adding to 30441240 its reverse (4214403), we get a palindrome (34655643).

The spelling of 30441240 in words is "thirty million, four hundred forty-one thousand, two hundred forty".