34140021140 has 24 divisors (see below), whose sum is σ = 73361349600. Its totient is φ = 13338426528.

The previous prime is 34140021119. The next prime is 34140021143. The reversal of 34140021140 is 4112004143.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34140021143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19847990 + ... + 19849709.

It is an arithmetic number, because the mean of its divisors is an integer number (3056722900).

Almost surely, 2^34140021140 is an apocalyptic number.

It is an amenable number.

34140021140 is an abundant number, since it is smaller than the sum of its proper divisors (39221328460).

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

34140021140 is a wasteful number, since it uses less digits than its factorization.

34140021140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39697751 (or 39697749 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 34140021140 its reverse (4112004143), we get a palindrome (38252025283).

The spelling of 34140021140 in words is "thirty-four billion, one hundred forty million, twenty-one thousand, one hundred forty".