30469649 has 4 divisors (see below), whose sum is σ = 34822464. Its totient is φ = 26116836.

The previous prime is 30469631. The next prime is 30469667. The reversal of 30469649 is 94696403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94696403 = 73 ⋅1297211.

It is an interprime number because it is at equal distance from previous prime (30469631) and next prime (30469667).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30469649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30469609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2176397 + ... + 2176410.

It is an arithmetic number, because the mean of its divisors is an integer number (8705616).

Almost surely, 2^30469649 is an apocalyptic number.

It is an amenable number.

30469649 is a deficient number, since it is larger than the sum of its proper divisors (4352815).

30469649 is an equidigital number, since it uses as much as digits as its factorization.

30469649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352814.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 30469649 is about 5519.9319742185. The cubic root of 30469649 is about 312.3363161993.

The spelling of 30469649 in words is "thirty million, four hundred sixty-nine thousand, six hundred forty-nine".