30461649 has 4 divisors (see below), whose sum is σ = 40615536. Its totient is φ = 20307764.

The previous prime is 30461621. The next prime is 30461653. The reversal of 30461649 is 94616403.

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 30461649 - 2⁷ = 30461521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30460649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5076939 + ... + 5076944.

It is an arithmetic number, because the mean of its divisors is an integer number (10153884).

Almost surely, 2^30461649 is an apocalyptic number.

It is an amenable number.

30461649 is a deficient number, since it is larger than the sum of its proper divisors (10153887).

30461649 is a wasteful number, since it uses less digits than its factorization.

30461649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10153886.

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

The square root of 30461649 is about 5519.2072800358. The cubic root of 30461649 is about 312.3089785117.

The spelling of 30461649 in words is "thirty million, four hundred sixty-one thousand, six hundred forty-nine".