30490649 has 8 divisors (see below), whose sum is σ = 36680640. Its totient is φ = 24759216.

The previous prime is 30490637. The next prime is 30490651. The reversal of 30490649 is 94609403.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30490649 - 2⁸ = 30490393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30490549) 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, 114494 + ... + 114759.

It is an arithmetic number, because the mean of its divisors is an integer number (4585080).

Almost surely, 2^30490649 is an apocalyptic number.

It is an amenable number.

30490649 is a deficient number, since it is larger than the sum of its proper divisors (6189991).

30490649 is a wasteful number, since it uses less digits than its factorization.

30490649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229279.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 30490649 is about 5521.8338439326. The cubic root of 30490649 is about 312.4080548702.

The spelling of 30490649 in words is "thirty million, four hundred ninety thousand, six hundred forty-nine".