7276816 has 40 divisors (see below), whose sum is σ = 15427584. Its totient is φ = 3310080.

The previous prime is 7276813. The next prime is 7276837. The reversal of 7276816 is 6186727.

It is a happy number.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7276813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8001 + ... + 8863.

Almost surely, 2^7276816 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 7276816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7713792).

7276816 is an abundant number, since it is smaller than the sum of its proper divisors (8150768).

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

7276816 is a wasteful number, since it uses less digits than its factorization.

7276816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 913 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 7276816 is about 2697.5574136615. The cubic root of 7276816 is about 193.7821624027.

The spelling of 7276816 in words is "seven million, two hundred seventy-six thousand, eight hundred sixteen".