20010430340 has 24 divisors (see below), whose sum is σ = 42115512600. Its totient is φ = 7986341888.

The previous prime is 20010430333. The next prime is 20010430361. The reversal of 20010430340 is 4303401002.

It can be written as a sum of positive squares in 4 ways, for example, as 2234074756 + 17776355584 = 47266^2 + 133328^2 .

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, 1105187 + ... + 1123146.

It is an arithmetic number, because the mean of its divisors is an integer number (1754813025).

Almost surely, 2^20010430340 is an apocalyptic number.

20010430340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010430340 is an abundant number, since it is smaller than the sum of its proper divisors (22105082260).

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

20010430340 is a wasteful number, since it uses less digits than its factorization.

20010430340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228791 (or 2228789 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20010430340 its reverse (4303401002), we get a palindrome (24313831342).

The spelling of 20010430340 in words is "twenty billion, ten million, four hundred thirty thousand, three hundred forty".