30368240 has 120 divisors (see below), whose sum is σ = 84137472. Its totient is φ = 10160640.

The previous prime is 30368207. The next prime is 30368269. The reversal of 30368240 is 4286303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 239057 + ... + 239183.

Almost surely, 2^30368240 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 30368240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42068736).

30368240 is an abundant number, since it is smaller than the sum of its proper divisors (53769232).

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

30368240 is a wasteful number, since it uses less digits than its factorization.

30368240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 30368240 is about 5510.7386074827. The cubic root of 30368240 is about 311.9894254580.

The spelling of 30368240 in words is "thirty million, three hundred sixty-eight thousand, two hundred forty".