34020420340 has 24 divisors (see below), whose sum is σ = 73373773032. Its totient is φ = 13240379520.

The previous prime is 34020420337. The next prime is 34020420367. The reversal of 34020420340 is 4302402043.

It can be written as a sum of positive squares in 4 ways, for example, as 1812375184 + 32208045156 = 42572^2 + 179466^2 .

It is a super-2 number, since 2×34020420340² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 22986031 + ... + 22987510.

It is an arithmetic number, because the mean of its divisors is an integer number (3057240543).

Almost surely, 2^34020420340 is an apocalyptic number.

It is an amenable number.

34020420340 is an abundant number, since it is smaller than the sum of its proper divisors (39353352692).

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

34020420340 is a wasteful number, since it uses less digits than its factorization.

34020420340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45973587 (or 45973585 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 34020420340 its reverse (4302402043), we get a palindrome (38322822383).

The spelling of 34020420340 in words is "thirty-four billion, twenty million, four hundred twenty thousand, three hundred forty".