30700224 has 42 divisors (see below), whose sum is σ = 87998300. Its totient is φ = 10233216.

The previous prime is 30700217. The next prime is 30700231. The reversal of 30700224 is 42200703.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30700217) and next prime (30700231).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30700197 and 30700206.

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 5 ways as a sum of consecutive naturals, for example, 26074 + ... + 27225.

Almost surely, 2^30700224 is an apocalyptic number.

It is an amenable number.

30700224 is an abundant number, since it is smaller than the sum of its proper divisors (57298076).

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

30700224 is a wasteful number, since it uses less digits than its factorization.

30700224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53317 (or 53304 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 30700224 is about 5540.7782846817. The cubic root of 30700224 is about 313.1221916394.

Adding to 30700224 its reverse (42200703), we get a palindrome (72900927).

The spelling of 30700224 in words is "thirty million, seven hundred thousand, two hundred twenty-four".