30685834 has 8 divisors (see below), whose sum is σ = 46897380. Its totient is φ = 15053376.

The previous prime is 30685829. The next prime is 30685843. The reversal of 30685834 is 43858603.

It can be written as a sum of positive squares in 2 ways, for example, as 29735209 + 950625 = 5453^2 + 975^2 .

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 = 30685793 and 30685802.

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, 144639 + ... + 144850.

Almost surely, 2^30685834 is an apocalyptic number.

30685834 is a deficient number, since it is larger than the sum of its proper divisors (16211546).

30685834 is a wasteful number, since it uses less digits than its factorization.

30685834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289544.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 30685834 is about 5539.4795784442. The cubic root of 30685834 is about 313.0732611330.

The spelling of 30685834 in words is "thirty million, six hundred eighty-five thousand, eight hundred thirty-four".