8347042040 has 32 divisors (see below), whose sum is σ = 19018584000. Its totient is φ = 3296552064.

The previous prime is 8347042037. The next prime is 8347042043. The reversal of 8347042040 is 402407438.

It is an interprime number because it is at equal distance from previous prime (8347042037) and next prime (8347042043).

It is a super-2 number, since 2×8347042040² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8347041988 and 8347042006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8347042043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1317575 + ... + 1323894.

It is an arithmetic number, because the mean of its divisors is an integer number (594330750).

Almost surely, 2^8347042040 is an apocalyptic number.

It is an amenable number.

8347042040 is an abundant number, since it is smaller than the sum of its proper divisors (10671541960).

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

8347042040 is a wasteful number, since it uses less digits than its factorization.

8347042040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641559 (or 2641555 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 8347042040 is about 91362.1477418302. The cubic root of 8347042040 is about 2028.5117777776.

Adding to 8347042040 its reverse (402407438), we get a palindrome (8749449478).

The spelling of 8347042040 in words is "eight billion, three hundred forty-seven million, forty-two thousand, forty".