20380293834 has 32 divisors (see below), whose sum is σ = 41216890176. Its totient is φ = 6717504000.

The previous prime is 20380293833. The next prime is 20380293971. The reversal of 20380293834 is 43839208302.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20380293833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676084 + ... + 705584.

It is an arithmetic number, because the mean of its divisors is an integer number (1288027818).

Almost surely, 2^20380293834 is an apocalyptic number.

20380293834 is an abundant number, since it is smaller than the sum of its proper divisors (20836596342).

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

20380293834 is a wasteful number, since it uses less digits than its factorization.

20380293834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30790.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 20380293834 in words is "twenty billion, three hundred eighty million, two hundred ninety-three thousand, eight hundred thirty-four".