7838294140 has 12 divisors (see below), whose sum is σ = 16460417736. Its totient is φ = 3135317648.

The previous prime is 7838294117. The next prime is 7838294141. The reversal of 7838294140 is 414928387.

It is a super-2 number, since 2×7838294140² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7838294141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195957334 + ... + 195957373.

It is an arithmetic number, because the mean of its divisors is an integer number (1371701478).

Almost surely, 2^7838294140 is an apocalyptic number.

It is an amenable number.

7838294140 is an abundant number, since it is smaller than the sum of its proper divisors (8622123596).

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

7838294140 is a wasteful number, since it uses less digits than its factorization.

7838294140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391914716 (or 391914714 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 7838294140 is about 88534.1410982227. The cubic root of 7838294140 is about 1986.4326837452.

The spelling of 7838294140 in words is "seven billion, eight hundred thirty-eight million, two hundred ninety-four thousand, one hundred forty".