20230442340 has 96 divisors (see below), whose sum is σ = 62045585280. Its totient is φ = 4902352896.

The previous prime is 20230442333. The next prime is 20230442359. The reversal of 20230442340 is 4324403202.

It is a self number, because there is not a number n which added to its sum of digits gives 20230442340.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 312382 + ... + 371541.

It is an arithmetic number, because the mean of its divisors is an integer number (646308180).

Almost surely, 2^20230442340 is an apocalyptic number.

20230442340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20230442340 is an abundant number, since it is smaller than the sum of its proper divisors (41815142940).

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

20230442340 is a wasteful number, since it uses less digits than its factorization.

20230442340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683981 (or 683979 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20230442340 its reverse (4324403202), we get a palindrome (24554845542).

The spelling of 20230442340 in words is "twenty billion, two hundred thirty million, four hundred forty-two thousand, three hundred forty".