30378560 has 28 divisors (see below), whose sum is σ = 72339708. Its totient is φ = 12151296.

The previous prime is 30378559. The next prime is 30378563. The reversal of 30378560 is 6587303.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16777216 + 13601344 = 4096^2 + 3688^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (30378563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47147 + ... + 47786.

It is an arithmetic number, because the mean of its divisors is an integer number (2583561).

Almost surely, 2^30378560 is an apocalyptic number.

It is an amenable number.

30378560 is an abundant number, since it is smaller than the sum of its proper divisors (41961148).

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

30378560 is an equidigital number, since it uses as much as digits as its factorization.

30378560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94950 (or 94940 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 30378560 is about 5511.6748815582. The cubic root of 30378560 is about 312.0247624440.

The spelling of 30378560 in words is "thirty million, three hundred seventy-eight thousand, five hundred sixty".