30863430 has 96 divisors (see below), whose sum is σ = 89709984. Its totient is φ = 7589376.

The previous prime is 30863419. The next prime is 30863501. The reversal of 30863430 is 3436803.

It is a super-2 number, since 2×30863430² = 1905102622729800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 30863394 and 30863403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31102 + ... + 32078.

It is an arithmetic number, because the mean of its divisors is an integer number (934479).

Almost surely, 2^30863430 is an apocalyptic number.

30863430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30863430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44854992).

30863430 is an abundant number, since it is smaller than the sum of its proper divisors (58846554).

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

30863430 is a wasteful number, since it uses less digits than its factorization.

30863430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 30863430 is about 5555.4864773483. The cubic root of 30863430 is about 313.6760760850.

The spelling of 30863430 in words is "thirty million, eight hundred sixty-three thousand, four hundred thirty".