30780460 has 24 divisors (see below), whose sum is σ = 64745856. Its totient is φ = 12291840.

The previous prime is 30780443. The next prime is 30780473. The reversal of 30780460 is 6408703.

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 7 ways as a sum of consecutive naturals, for example, 19044 + ... + 20596.

It is an arithmetic number, because the mean of its divisors is an integer number (2697744).

Almost surely, 2^30780460 is an apocalyptic number.

It is an amenable number.

30780460 is an abundant number, since it is smaller than the sum of its proper divisors (33965396).

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

30780460 is a wasteful number, since it uses less digits than its factorization.

30780460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553 (or 2551 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 30780460 is about 5548.0140591026. The cubic root of 30780460 is about 313.3947392352.

The spelling of 30780460 in words is "thirty million, seven hundred eighty thousand, four hundred sixty".