7278441 has 8 divisors (see below), whose sum is σ = 9745824. Its totient is φ = 4831680.

The previous prime is 7278421. The next prime is 7278473. The reversal of 7278441 is 1448727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7278441 - 2⁶ = 7278377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7278421) 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, 4311 + ... + 5756.

It is an arithmetic number, because the mean of its divisors is an integer number (1218228).

Almost surely, 2^7278441 is an apocalyptic number.

It is an amenable number.

7278441 is a deficient number, since it is larger than the sum of its proper divisors (2467383).

7278441 is a wasteful number, since it uses less digits than its factorization.

7278441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10311.

The product of its digits is 12544, while the sum is 33.

The square root of 7278441 is about 2697.8585952566. The cubic root of 7278441 is about 193.7965859535.

The spelling of 7278441 in words is "seven million, two hundred seventy-eight thousand, four hundred forty-one".