20330232340 has 48 divisors (see below), whose sum is σ = 49314412224. Its totient is φ = 6957939200.

The previous prime is 20330232287. The next prime is 20330232341. The reversal of 20330232340 is 4323203302.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330232341) 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, 2714206 + ... + 2721685.

It is an arithmetic number, because the mean of its divisors is an integer number (1027383588).

Almost surely, 2^20330232340 is an apocalyptic number.

20330232340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20330232340 is an abundant number, since it is smaller than the sum of its proper divisors (28984179884).

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

20330232340 is a wasteful number, since it uses less digits than its factorization.

20330232340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5435928 (or 5435926 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 22.

Adding to 20330232340 its reverse (4323203302), we get a palindrome (24653435642).

The spelling of 20330232340 in words is "twenty billion, three hundred thirty million, two hundred thirty-two thousand, three hundred forty".