30532780 has 12 divisors (see below), whose sum is σ = 64118880. Its totient is φ = 12213104.

The previous prime is 30532763. The next prime is 30532783. The reversal of 30532780 is 8723503.

It is not an unprimeable number, because it can be changed into a prime (30532783) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 763300 + ... + 763339.

It is an arithmetic number, because the mean of its divisors is an integer number (5343240).

Almost surely, 2^30532780 is an apocalyptic number.

It is an amenable number.

30532780 is an abundant number, since it is smaller than the sum of its proper divisors (33586100).

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

30532780 is a wasteful number, since it uses less digits than its factorization.

30532780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526648 (or 1526646 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 30532780 is about 5525.6474733736. The cubic root of 30532780 is about 312.5518804531.

The spelling of 30532780 in words is "thirty million, five hundred thirty-two thousand, seven hundred eighty".