20340133040 has 40 divisors (see below), whose sum is σ = 47608225200. Its totient is φ = 8081444096.

The previous prime is 20340133031. The next prime is 20340133063. The reversal of 20340133040 is 4033104302.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 841274 + ... + 865113.

It is an arithmetic number, because the mean of its divisors is an integer number (1190205630).

Almost surely, 2^20340133040 is an apocalyptic number.

20340133040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20340133040 is an abundant number, since it is smaller than the sum of its proper divisors (27268092160).

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

20340133040 is a wasteful number, since it uses less digits than its factorization.

20340133040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706549 (or 1706543 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20340133040 its reverse (4033104302), we get a palindrome (24373237342).

The spelling of 20340133040 in words is "twenty billion, three hundred forty million, one hundred thirty-three thousand, forty".