30201440 has 48 divisors (see below), whose sum is σ = 73664640. Its totient is φ = 11688960.

The previous prime is 30201439. The next prime is 30201443. The reversal of 30201440 is 4410203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30201443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1916 + ... + 8004.

It is an arithmetic number, because the mean of its divisors is an integer number (1534680).

Almost surely, 2^30201440 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 30201440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36832320).

30201440 is an abundant number, since it is smaller than the sum of its proper divisors (43463200).

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

30201440 is a wasteful number, since it uses less digits than its factorization.

30201440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6135 (or 6127 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 30201440 is about 5495.5836814664. The cubic root of 30201440 is about 311.4171674495.

Adding to 30201440 its reverse (4410203), we get a palindrome (34611643).

The spelling of 30201440 in words is "thirty million, two hundred one thousand, four hundred forty".