20302445340 has 96 divisors (see below), whose sum is σ = 63197568000. Its totient is φ = 5411036736.

The previous prime is 20302445327. The next prime is 20302445351. The reversal of 20302445340 is 4354420302.

20302445340 is a `hidden beast` number, since 203 + 0 + 2 + 4 + 453 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1091841 + ... + 1110279.

It is an arithmetic number, because the mean of its divisors is an integer number (658308000).

Almost surely, 2^20302445340 is an apocalyptic number.

20302445340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302445340 is an abundant number, since it is smaller than the sum of its proper divisors (42895122660).

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

20302445340 is a wasteful number, since it uses less digits than its factorization.

20302445340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20496 (or 20488 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 20302445340 its reverse (4354420302), we get a palindrome (24656865642).

The spelling of 20302445340 in words is "twenty billion, three hundred two million, four hundred forty-five thousand, three hundred forty".