34243021240 has 64 divisors (see below), whose sum is σ = 80605445760. Its totient is φ = 13078778880.

The previous prime is 34243021237. The next prime is 34243021261. The reversal of 34243021240 is 4212034243.

It is a happy number.

It is a super-2 number, since 2×34243021240² (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 15 ways as a sum of consecutive naturals, for example, 145047 + ... + 299206.

It is an arithmetic number, because the mean of its divisors is an integer number (1259460090).

Almost surely, 2^34243021240 is an apocalyptic number.

It is an amenable number.

34243021240 is an abundant number, since it is smaller than the sum of its proper divisors (46362424520).

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

34243021240 is a wasteful number, since it uses less digits than its factorization.

34243021240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444352 (or 444348 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 34243021240 its reverse (4212034243), we get a palindrome (38455055483).

The spelling of 34243021240 in words is "thirty-four billion, two hundred forty-three million, twenty-one thousand, two hundred forty".