30032420 has 24 divisors (see below), whose sum is σ = 68802048. Its totient is φ = 10920800.

The previous prime is 30032417. The next prime is 30032423. The reversal of 30032420 is 2423003.

It is an interprime number because it is at equal distance from previous prime (30032417) and next prime (30032423).

It is a junction number, because it is equal to n+sod(n) for n = 30032395 and 30032404.

It is not an unprimeable number, because it can be changed into a prime (30032423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68036 + ... + 68475.

It is an arithmetic number, because the mean of its divisors is an integer number (2866752).

Almost surely, 2^30032420 is an apocalyptic number.

It is an amenable number.

30032420 is an abundant number, since it is smaller than the sum of its proper divisors (38769628).

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

30032420 is a wasteful number, since it uses less digits than its factorization.

30032420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136531 (or 136529 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30032420 is about 5480.1843034701. The cubic root of 30032420 is about 310.8351397199.

Adding to 30032420 its reverse (2423003), we get a palindrome (32455423).

The spelling of 30032420 in words is "thirty million, thirty-two thousand, four hundred twenty".