30394368 has 144 divisors (see below), whose sum is σ = 93906540. Its totient is φ = 9437184.

The previous prime is 30394333. The next prime is 30394391. The reversal of 30394368 is 86349303.

It can be written as a sum of positive squares in 2 ways, for example, as 29942784 + 451584 = 5472^2 + 672^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×30394368² = 1847635212238848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313296 + ... + 313392.

Almost surely, 2^30394368 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 30394368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46953270).

30394368 is an abundant number, since it is smaller than the sum of its proper divisors (63512172).

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

30394368 is a wasteful number, since it uses less digits than its factorization.

30394368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 30394368 is about 5513.1087418987. The cubic root of 30394368 is about 312.0788755216.

The spelling of 30394368 in words is "thirty million, three hundred ninety-four thousand, three hundred sixty-eight".