30341440 has 56 divisors (see below), whose sum is σ = 73654920. Its totient is φ = 11900928.

The previous prime is 30341429. The next prime is 30341449. The reversal of 30341440 is 4414303.

It can be written as a sum of positive squares in 4 ways, for example, as 12902464 + 17438976 = 3592^2 + 4176^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30341449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16066 + ... + 17854.

Almost surely, 2^30341440 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 30341440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36827460).

30341440 is an abundant number, since it is smaller than the sum of its proper divisors (43313480).

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

30341440 is a wasteful number, since it uses less digits than its factorization.

30341440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859 (or 1849 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 30341440 is about 5508.3064548008. The cubic root of 30341440 is about 311.8976214611.

Adding to 30341440 its reverse (4414303), we get a palindrome (34755743).

The spelling of 30341440 in words is "thirty million, three hundred forty-one thousand, four hundred forty".