30700680 has 32 divisors (see below), whose sum is σ = 92102400. Its totient is φ = 8186816.

The previous prime is 30700679. The next prime is 30700693. The reversal of 30700680 is 8600703.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30700680.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 127800 + ... + 128039.

It is an arithmetic number, because the mean of its divisors is an integer number (2878200).

Almost surely, 2^30700680 is an apocalyptic number.

30700680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30700680 is an abundant number, since it is smaller than the sum of its proper divisors (61401720).

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

30700680 is a wasteful number, since it uses less digits than its factorization.

30700680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255853 (or 255849 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 30700680 is about 5540.8194339827. The cubic root of 30700680 is about 313.1237419322.

The spelling of 30700680 in words is "thirty million, seven hundred thousand, six hundred eighty".