34020021040 has 40 divisors (see below), whose sum is σ = 80936011728. Its totient is φ = 13291541760.

The previous prime is 34020020989. The next prime is 34020021041. The reversal of 34020021040 is 4012002043.

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 (16).

It is not an unprimeable number, because it can be changed into a prime (34020021041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4941331 + ... + 4948210.

Almost surely, 2^34020021040 is an apocalyptic number.

It is an amenable number.

34020021040 is an abundant number, since it is smaller than the sum of its proper divisors (46915990688).

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

34020021040 is a wasteful number, since it uses less digits than its factorization.

34020021040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9889597 (or 9889591 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 34020021040 its reverse (4012002043), we get a palindrome (38032023083).

The spelling of 34020021040 in words is "thirty-four billion, twenty million, twenty-one thousand, forty".