20460340004 has 48 divisors (see below), whose sum is σ = 40858247808. Its totient is φ = 8881187328.

The previous prime is 20460339979. The next prime is 20460340037. The reversal of 20460340004 is 40004306402.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1303169 + ... + 1318775.

It is an arithmetic number, because the mean of its divisors is an integer number (851213496).

Almost surely, 2^20460340004 is an apocalyptic number.

It is an amenable number.

20460340004 is a deficient number, since it is larger than the sum of its proper divisors (20397907804).

20460340004 is a wasteful number, since it uses less digits than its factorization.

20460340004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17124 (or 17122 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20460340004 its reverse (40004306402), we get a palindrome (60464646406).

The spelling of 20460340004 in words is "twenty billion, four hundred sixty million, three hundred forty thousand, four".