30478634 has 16 divisors (see below), whose sum is σ = 47969280. Its totient is φ = 14496240.

The previous prime is 30478631. The next prime is 30478649. The reversal of 30478634 is 43687403.

It is a junction number, because it is equal to n+sod(n) for n = 30478594 and 30478603.

It is not an unprimeable number, because it can be changed into a prime (30478631) 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, 7052 + ... + 10520.

It is an arithmetic number, because the mean of its divisors is an integer number (2998080).

Almost surely, 2^30478634 is an apocalyptic number.

30478634 is a deficient number, since it is larger than the sum of its proper divisors (17490646).

30478634 is a wasteful number, since it uses less digits than its factorization.

30478634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 30478634 is about 5520.7457829536. The cubic root of 30478634 is about 312.3670141353.

The spelling of 30478634 in words is "thirty million, four hundred seventy-eight thousand, six hundred thirty-four".