7894140 has 48 divisors (see below), whose sum is σ = 22649760. Its totient is φ = 2053120.

The previous prime is 7894127. The next prime is 7894153. The reversal of 7894140 is 414987.

It is an interprime number because it is at equal distance from previous prime (7894127) and next prime (7894153).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856 + ... + 4064.

It is an arithmetic number, because the mean of its divisors is an integer number (471870).

Almost surely, 2^7894140 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 7894140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11324880).

7894140 is an abundant number, since it is smaller than the sum of its proper divisors (14755620).

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

7894140 is a wasteful number, since it uses less digits than its factorization.

7894140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262 (or 3260 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 7894140 is about 2809.6512239066. The cubic root of 7894140 is about 199.1139133835.

The spelling of 7894140 in words is "seven million, eight hundred ninety-four thousand, one hundred forty".