30400326 has 64 divisors (see below), whose sum is σ = 74995200. Its totient is φ = 9050400.

The previous prime is 30400303. The next prime is 30400333. The reversal of 30400326 is 62300403.

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

It is a junction number, because it is equal to n+sod(n) for n = 30400299 and 30400308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35815 + ... + 36653.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^30400326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30400326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37497600).

30400326 is an abundant number, since it is smaller than the sum of its proper divisors (44594874).

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

30400326 is a wasteful number, since it uses less digits than its factorization.

30400326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 916 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30400326 is about 5513.6490639140. The cubic root of 30400326 is about 312.0992657516.

Adding to 30400326 its reverse (62300403), we get a palindrome (92700729).

The spelling of 30400326 in words is "thirty million, four hundred thousand, three hundred twenty-six".