3030649 has 4 divisors (see below), whose sum is σ = 3047760. Its totient is φ = 3013540.

The previous prime is 3030623. The next prime is 3030661. The reversal of 3030649 is 9460303.

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.

It is a cyclic number.

It is not a de Polignac number, because 3030649 - 2¹³ = 3022457 is a prime.

It is a super-2 number, since 2×3030649² = 18369666722402, which contains 22 as substring.

It is a Duffinian number.

3030649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3030619) 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, 8287 + ... + 8644.

It is an arithmetic number, because the mean of its divisors is an integer number (761940).

Almost surely, 2^3030649 is an apocalyptic number.

It is an amenable number.

3030649 is a deficient number, since it is larger than the sum of its proper divisors (17111).

3030649 is a wasteful number, since it uses less digits than its factorization.

3030649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17110.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 3030649 is about 1740.8759289507. The cubic root of 3030649 is about 144.7144439541.

The spelling of 3030649 in words is "three million, thirty thousand, six hundred forty-nine".