34021420412 has 72 divisors (see below), whose sum is σ = 70595650944. Its totient is φ = 14052757824.

The previous prime is 34021420403. The next prime is 34021420451. The reversal of 34021420412 is 21402412043.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19473323 + ... + 19475069.

It is an arithmetic number, because the mean of its divisors is an integer number (980495152).

Almost surely, 2^34021420412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34021420412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35297825472).

34021420412 is an abundant number, since it is smaller than the sum of its proper divisors (36574230532).

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

34021420412 is a wasteful number, since it uses less digits than its factorization.

34021420412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643 (or 2612 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 34021420412 its reverse (21402412043), we get a palindrome (55423832455).

The spelling of 34021420412 in words is "thirty-four billion, twenty-one million, four hundred twenty thousand, four hundred twelve".