30075540 has 48 divisors (see below), whose sum is σ = 91869120. Its totient is φ = 7290880.

The previous prime is 30075527. The next prime is 30075557. The reversal of 30075540 is 4557003.

It is a self number, because there is not a number n which added to its sum of digits gives 30075540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22125 + ... + 23444.

It is an arithmetic number, because the mean of its divisors is an integer number (1913940).

Almost surely, 2^30075540 is an apocalyptic number.

30075540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30075540 is an abundant number, since it is smaller than the sum of its proper divisors (61793580).

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

30075540 is a wasteful number, since it uses less digits than its factorization.

30075540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45592 (or 45590 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 30075540 is about 5484.1170665842. The cubic root of 30075540 is about 310.9838323843.

The spelling of 30075540 in words is "thirty million, seventy-five thousand, five hundred forty".