34123215540 has 24 divisors (see below), whose sum is σ = 95545003680. Its totient is φ = 9099524128.

The previous prime is 34123215527. The next prime is 34123215551. The reversal of 34123215540 is 4551232143.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 34123215498 and 34123215507.

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, 284360070 + ... + 284360189.

It is an arithmetic number, because the mean of its divisors is an integer number (3981041820).

Almost surely, 2^34123215540 is an apocalyptic number.

34123215540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34123215540 is an abundant number, since it is smaller than the sum of its proper divisors (61421788140).

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

34123215540 is a wasteful number, since it uses less digits than its factorization.

34123215540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568720271 (or 568720269 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 34123215540 its reverse (4551232143), we get a palindrome (38674447683).

The spelling of 34123215540 in words is "thirty-four billion, one hundred twenty-three million, two hundred fifteen thousand, five hundred forty".