7934140 has 48 divisors (see below), whose sum is σ = 17547264. Its totient is φ = 3009600.

The previous prime is 7934137. The next prime is 7934141. The reversal of 7934140 is 414397.

It is a junction number, because it is equal to n+sod(n) for n = 7934099 and 7934108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7934141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41445 + ... + 41635.

It is an arithmetic number, because the mean of its divisors is an integer number (365568).

Almost surely, 2^7934140 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 7934140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8773632).

7934140 is an abundant number, since it is smaller than the sum of its proper divisors (9613124).

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

7934140 is a wasteful number, since it uses less digits than its factorization.

7934140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 7934140 is about 2816.7605507036. The cubic root of 7934140 is about 199.4496536502.

The spelling of 7934140 in words is "seven million, nine hundred thirty-four thousand, one hundred forty".