7045866 has 80 divisors (see below), whose sum is σ = 17284608. Its totient is φ = 2138400.

The previous prime is 7045859. The next prime is 7045867. The reversal of 7045866 is 6685407.

It is a happy number.

7045866 is a `hidden beast` number, since 70 + 4 + 586 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7045866.

It is not an unprimeable number, because it can be changed into a prime (7045867) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 115476 + ... + 115536.

Almost surely, 2^7045866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7045866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8642304).

7045866 is an abundant number, since it is smaller than the sum of its proper divisors (10238742).

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

7045866 is a wasteful number, since it uses less digits than its factorization.

7045866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 7045866 is about 2654.4050180784. The cubic root of 7045866 is about 191.7100114530.

The spelling of 7045866 in words is "seven million, forty-five thousand, eight hundred sixty-six".