30355664 has 10 divisors (see below), whose sum is σ = 58814130. Its totient is φ = 15177824.

The previous prime is 30355643. The next prime is 30355687. The reversal of 30355664 is 46655303.

It can be written as a sum of positive squares in only one way, i.e., 30162064 + 193600 = 5492^2 + 440^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30355664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 948599 + ... + 948630.

It is an arithmetic number, because the mean of its divisors is an integer number (5881413).

Almost surely, 2^30355664 is an apocalyptic number.

It is an amenable number.

30355664 is a deficient number, since it is larger than the sum of its proper divisors (28458466).

30355664 is a wasteful number, since it uses less digits than its factorization.

30355664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897237 (or 1897231 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 30355664 is about 5509.5974444600. The cubic root of 30355664 is about 311.9463528186.

The spelling of 30355664 in words is "thirty million, three hundred fifty-five thousand, six hundred sixty-four".