30478280842 has 8 divisors (see below), whose sum is σ = 45748253376. Its totient is φ = 15228863052.

The previous prime is 30478280839. The next prime is 30478280869. The reversal of 30478280842 is 24808287403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30478280792 and 30478280801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5134978 + ... + 5140909.

It is an arithmetic number, because the mean of its divisors is an integer number (5718531672).

Almost surely, 2^30478280842 is an apocalyptic number.

30478280842 is a deficient number, since it is larger than the sum of its proper divisors (15269972534).

30478280842 is a wasteful number, since it uses less digits than its factorization.

30478280842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10277372.

The product of its (nonzero) digits is 688128, while the sum is 46.

The spelling of 30478280842 in words is "thirty billion, four hundred seventy-eight million, two hundred eighty thousand, eight hundred forty-two".