30450564 has 18 divisors (see below), whose sum is σ = 76972350. Its totient is φ = 10150176.

The previous prime is 30450547. The next prime is 30450583. The reversal of 30450564 is 46505403.

It can be written as a sum of positive squares in only one way, i.e., 28708164 + 1742400 = 5358^2 + 1320^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 422889 + ... + 422960.

Almost surely, 2^30450564 is an apocalyptic number.

It is an amenable number.

30450564 is an abundant number, since it is smaller than the sum of its proper divisors (46521786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30450564 is a wasteful number, since it uses less digits than its factorization.

30450564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845859 (or 845854 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 30450564 is about 5518.2029683584. The cubic root of 30450564 is about 312.2710908161.

Adding to 30450564 its reverse (46505403), we get a palindrome (76955967).

The spelling of 30450564 in words is "thirty million, four hundred fifty thousand, five hundred sixty-four".