30641649 has 8 divisors (see below), whose sum is σ = 40883232. Its totient is φ = 20413920.

The previous prime is 30641641. The next prime is 30641659. The reversal of 30641649 is 94614603.

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

It is not a de Polignac number, because 30641649 - 2³ = 30641641 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (30641641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3997 + ... + 8789.

It is an arithmetic number, because the mean of its divisors is an integer number (5110404).

Almost surely, 2^30641649 is an apocalyptic number.

It is an amenable number.

30641649 is a deficient number, since it is larger than the sum of its proper divisors (10241583).

30641649 is a wasteful number, since it uses less digits than its factorization.

30641649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6927.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 30641649 is about 5535.4899512148. The cubic root of 30641649 is about 312.9229226318.

The spelling of 30641649 in words is "thirty million, six hundred forty-one thousand, six hundred forty-nine".