30052240 has 40 divisors (see below), whose sum is σ = 71066880. Its totient is φ = 11815296.

The previous prime is 30052229. The next prime is 30052259. The reversal of 30052240 is 4225003.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1537 + ... + 7903.

It is an arithmetic number, because the mean of its divisors is an integer number (1776672).

Almost surely, 2^30052240 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 30052240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35533440).

30052240 is an abundant number, since it is smaller than the sum of its proper divisors (41014640).

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

30052240 is a wasteful number, since it uses less digits than its factorization.

30052240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6439 (or 6433 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 30052240 is about 5481.9923385572. The cubic root of 30052240 is about 310.9035035936.

Adding to 30052240 its reverse (4225003), we get a palindrome (34277243).

The spelling of 30052240 in words is "thirty million, fifty-two thousand, two hundred forty".