30849790 has 8 divisors (see below), whose sum is σ = 55529640. Its totient is φ = 12339912.

The previous prime is 30849779. The next prime is 30849809. The reversal of 30849790 is 9794803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1542480 + ... + 1542499.

It is an arithmetic number, because the mean of its divisors is an integer number (6941205).

Almost surely, 2^30849790 is an apocalyptic number.

30849790 is a deficient number, since it is larger than the sum of its proper divisors (24679850).

30849790 is a wasteful number, since it uses less digits than its factorization.

30849790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084986.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 30849790 is about 5554.2587264189. The cubic root of 30849790 is about 313.6298598767.

The spelling of 30849790 in words is "thirty million, eight hundred forty-nine thousand, seven hundred ninety".