20834562430 has 32 divisors (see below), whose sum is σ = 40918439520. Its totient is φ = 7574920320.

The previous prime is 20834562421. The next prime is 20834562431. The reversal of 20834562430 is 3426543802.

It is a self number, because there is not a number n which added to its sum of digits gives 20834562430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20834562431) 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, 844632 + ... + 868948.

It is an arithmetic number, because the mean of its divisors is an integer number (1278701235).

Almost surely, 2^20834562430 is an apocalyptic number.

20834562430 is a deficient number, since it is larger than the sum of its proper divisors (20083877090).

20834562430 is a wasteful number, since it uses less digits than its factorization.

20834562430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32124.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 20834562430 in words is "twenty billion, eight hundred thirty-four million, five hundred sixty-two thousand, four hundred thirty".