7166740 has 72 divisors (see below), whose sum is σ = 17926272. Its totient is φ = 2399040.

The previous prime is 7166729. The next prime is 7166749. The reversal of 7166740 is 476617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7166749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69529 + ... + 69631.

It is an arithmetic number, because the mean of its divisors is an integer number (248976).

Almost surely, 2^7166740 is an apocalyptic number.

7166740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7166740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8963136).

7166740 is an abundant number, since it is smaller than the sum of its proper divisors (10759532).

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

7166740 is a wasteful number, since it uses less digits than its factorization.

7166740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 7166740 is about 2677.0767639349. The cubic root of 7166740 is about 192.8000829301.

The spelling of 7166740 in words is "seven million, one hundred sixty-six thousand, seven hundred forty".