20404232930 has 16 divisors (see below), whose sum is σ = 37275793920. Its totient is φ = 8039876592.

The previous prime is 20404232879. The next prime is 20404232951. The reversal of 20404232930 is 3923240402.

It is a junction number, because it is equal to n+sod(n) for n = 20404232893 and 20404232902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15226370 + ... + 15227709.

It is an arithmetic number, because the mean of its divisors is an integer number (2329737120).

Almost surely, 2^20404232930 is an apocalyptic number.

20404232930 is a deficient number, since it is larger than the sum of its proper divisors (16871560990).

20404232930 is a wasteful number, since it uses less digits than its factorization.

20404232930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30454153.

The product of its (nonzero) digits is 10368, while the sum is 29.

The spelling of 20404232930 in words is "twenty billion, four hundred four million, two hundred thirty-two thousand, nine hundred thirty".