30041040 has 160 divisors (see below), whose sum is σ = 101779200. Its totient is φ = 7299072.

The previous prime is 30041027. The next prime is 30041041. The reversal of 30041040 is 4014003.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30041041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150861 + ... + 151059.

It is an arithmetic number, because the mean of its divisors is an integer number (636120).

Almost surely, 2^30041040 is an apocalyptic number.

30041040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30041040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50889600).

30041040 is an abundant number, since it is smaller than the sum of its proper divisors (71738160).

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

30041040 is a wasteful number, since it uses less digits than its factorization.

30041040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 30041040 is about 5480.9707169442. The cubic root of 30041040 is about 310.8648758362.

Adding to 30041040 its reverse (4014003), we get a palindrome (34055043).

The spelling of 30041040 in words is "thirty million, forty-one thousand, forty".