30630750 has 32 divisors (see below), whose sum is σ = 76456224. Its totient is φ = 8168000.

The previous prime is 30630737. The next prime is 30630751. The reversal of 30630750 is 5703603.

It is a self number, because there is not a number n which added to its sum of digits gives 30630750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30630751) 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, 19671 + ... + 21170.

It is an arithmetic number, because the mean of its divisors is an integer number (2389257).

Almost surely, 2^30630750 is an apocalyptic number.

30630750 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30630750 is an abundant number, since it is smaller than the sum of its proper divisors (45825474).

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

30630750 is a wasteful number, since it uses less digits than its factorization.

30630750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40861 (or 40851 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 30630750 is about 5534.5053979556. The cubic root of 30630750 is about 312.8858168026.

It can be divided in two parts, 30 and 630750, that multiplied together give a square (18922500 = 4350²).

The spelling of 30630750 in words is "thirty million, six hundred thirty thousand, seven hundred fifty".