7894020 has 48 divisors (see below), whose sum is σ = 22276800. Its totient is φ = 2088576.

The previous prime is 7893997. The next prime is 7894021. The reversal of 7894020 is 204987.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7894021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8499 + ... + 9381.

It is an arithmetic number, because the mean of its divisors is an integer number (464100).

Almost surely, 2^7894020 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 7894020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11138400).

7894020 is an abundant number, since it is smaller than the sum of its proper divisors (14382780).

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

7894020 is a wasteful number, since it uses less digits than its factorization.

7894020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 7894020 is about 2809.6298688617. The cubic root of 7894020 is about 199.1129044582.

The spelling of 7894020 in words is "seven million, eight hundred ninety-four thousand, twenty".