30400564 has 6 divisors (see below), whose sum is σ = 53200994. Its totient is φ = 15200280.

The previous prime is 30400541. The next prime is 30400571. The reversal of 30400564 is 46500403.

It can be written as a sum of positive squares in only one way, i.e., 30338064 + 62500 = 5508^2 + 250^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3800067 + ... + 3800074.

Almost surely, 2^30400564 is an apocalyptic number.

It is an amenable number.

30400564 is a deficient number, since it is larger than the sum of its proper divisors (22800430).

30400564 is a wasteful number, since it uses less digits than its factorization.

30400564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7600145 (or 7600143 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30400564 is about 5513.6706466745. The cubic root of 30400564 is about 312.1000802103.

Adding to 30400564 its reverse (46500403), we get a palindrome (76900967).

The spelling of 30400564 in words is "thirty million, four hundred thousand, five hundred sixty-four".