30641834 has 4 divisors (see below), whose sum is σ = 45962754. Its totient is φ = 15320916.

The previous prime is 30641833. The next prime is 30641861. The reversal of 30641834 is 43814603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15626209 + 15015625 = 3953^2 + 3875^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30641797 and 30641806.

It is not an unprimeable number, because it can be changed into a prime (30641833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7660457 + ... + 7660460.

Almost surely, 2^30641834 is an apocalyptic number.

30641834 is a deficient number, since it is larger than the sum of its proper divisors (15320920).

30641834 is a wasteful number, since it uses less digits than its factorization.

30641834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15320919.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 30641834 is about 5535.5066615442. The cubic root of 30641834 is about 312.9235523914.

The spelling of 30641834 in words is "thirty million, six hundred forty-one thousand, eight hundred thirty-four".