30928514 has 32 divisors (see below), whose sum is σ = 51287040. Its totient is φ = 13965600.

The previous prime is 30928507. The next prime is 30928517. The reversal of 30928514 is 41582903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30928517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754334 + ... + 754374.

It is an arithmetic number, because the mean of its divisors is an integer number (1602720).

Almost surely, 2^30928514 is an apocalyptic number.

30928514 is a deficient number, since it is larger than the sum of its proper divisors (20358526).

30928514 is an equidigital number, since it uses as much as digits as its factorization.

30928514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 30928514 is about 5561.3410253283. The cubic root of 30928514 is about 313.8964119335.

The spelling of 30928514 in words is "thirty million, nine hundred twenty-eight thousand, five hundred fourteen".