7854540 has 48 divisors (see below), whose sum is σ = 22212960. Its totient is φ = 2073600.

The previous prime is 7854533. The next prime is 7854541. The reversal of 7854540 is 454587.

It is a super-2 number, since 2×7854540² = 123387597223200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7854541) 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, 5940 + ... + 7140.

It is an arithmetic number, because the mean of its divisors is an integer number (462770).

Almost surely, 2^7854540 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 7854540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11106480).

7854540 is an abundant number, since it is smaller than the sum of its proper divisors (14358420).

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

7854540 is a wasteful number, since it uses less digits than its factorization.

7854540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322 (or 1320 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 7854540 is about 2802.5952258576. The cubic root of 7854540 is about 198.7804114692.

The spelling of 7854540 in words is "seven million, eight hundred fifty-four thousand, five hundred forty".