30648590 has 16 divisors (see below), whose sum is σ = 63048672. Its totient is φ = 10508064.

The previous prime is 30648589. The next prime is 30648619. The reversal of 30648590 is 9584603.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 30648590.

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 7 ways as a sum of consecutive naturals, for example, 218849 + ... + 218988.

It is an arithmetic number, because the mean of its divisors is an integer number (3940542).

Almost surely, 2^30648590 is an apocalyptic number.

30648590 is an abundant number, since it is smaller than the sum of its proper divisors (32400082).

30648590 is a wasteful number, since it uses less digits than its factorization.

30648590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437851.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 30648590 is about 5536.1168701537. The cubic root of 30648590 is about 312.9465487974.

The spelling of 30648590 in words is "thirty million, six hundred forty-eight thousand, five hundred ninety".