30363840 has 168 divisors, whose sum is σ = 112611408. Its totient is φ = 7464960.

The previous prime is 30363829. The next prime is 30363877. The reversal of 30363840 is 4836303.

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 23 ways as a sum of consecutive naturals, for example, 37035 + ... + 37845.

It is an arithmetic number, because the mean of its divisors is an integer number (670306).

Almost surely, 2^30363840 is an apocalyptic number.

30363840 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 30363840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56305704).

30363840 is an abundant number, since it is smaller than the sum of its proper divisors (82247568).

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

30363840 is a wasteful number, since it uses less digits than its factorization.

30363840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 30363840 is about 5510.3393724888. The cubic root of 30363840 is about 311.9743568668.

The spelling of 30363840 in words is "thirty million, three hundred sixty-three thousand, eight hundred forty".