30630630 has 32 divisors (see below), whose sum is σ = 73932768. Its totient is φ = 8121600.

The previous prime is 30630629. The next prime is 30630631. The reversal of 30630630 is 3603603.

It is an interprime number because it is at equal distance from previous prime (30630629) and next prime (30630631).

It is a junction number, because it is equal to n+sod(n) for n = 30630597 and 30630606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30630631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2610 + ... + 8250.

It is an arithmetic number, because the mean of its divisors is an integer number (2310399).

Almost surely, 2^30630630 is an apocalyptic number.

30630630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30630630 is an abundant number, since it is smaller than the sum of its proper divisors (43302138).

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

30630630 is a wasteful number, since it uses less digits than its factorization.

30630630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5832.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 30630630 is about 5534.4945568679. The cubic root of 30630630 is about 312.8854082116.

The spelling of 30630630 in words is "thirty million, six hundred thirty thousand, six hundred thirty".