30630020 has 24 divisors (see below), whose sum is σ = 67120704. Its totient is φ = 11719136.

The previous prime is 30630013. The next prime is 30630023. The reversal of 30630020 is 2003603.

It is a junction number, because it is equal to n+sod(n) for n = 30629977 and 30630004.

It is not an unprimeable number, because it can be changed into a prime (30630023) 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, 32834 + ... + 33753.

It is an arithmetic number, because the mean of its divisors is an integer number (2796696).

Almost surely, 2^30630020 is an apocalyptic number.

It is an amenable number.

30630020 is an abundant number, since it is smaller than the sum of its proper divisors (36490684).

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

30630020 is a wasteful number, since it uses less digits than its factorization.

30630020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66619 (or 66617 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 30630020 is about 5534.4394476767. The cubic root of 30630020 is about 312.8833311908.

Adding to 30630020 its reverse (2003603), we get a palindrome (32633623).

The spelling of 30630020 in words is "thirty million, six hundred thirty thousand, twenty".