30025940 has 48 divisors (see below), whose sum is σ = 73833984. Its totient is φ = 10041600.

The previous prime is 30025939. The next prime is 30025943. The reversal of 30025940 is 4952003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30025943) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3125 + ... + 8355.

It is an arithmetic number, because the mean of its divisors is an integer number (1538208).

Almost surely, 2^30025940 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 30025940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36916992).

30025940 is an abundant number, since it is smaller than the sum of its proper divisors (43808044).

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

30025940 is a wasteful number, since it uses less digits than its factorization.

30025940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288 (or 5286 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 30025940 is about 5479.5930505832. The cubic root of 30025940 is about 310.8127821411.

Adding to 30025940 its reverse (4952003), we get a palindrome (34977943).

The spelling of 30025940 in words is "thirty million, twenty-five thousand, nine hundred forty".