2278726 has 8 divisors (see below), whose sum is σ = 3425040. Its totient is φ = 1137048.

The previous prime is 2278709. The next prime is 2278729. The reversal of 2278726 is 6278722.

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

It is a junction number, because it is equal to n+sod(n) for n = 2278691 and 2278700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615 + ... + 2221.

It is an arithmetic number, because the mean of its divisors is an integer number (428130).

2^2278726 is an apocalyptic number.

2278726 is a deficient number, since it is larger than the sum of its proper divisors (1146314).

2278726 is a wasteful number, since it uses less digits than its factorization.

2278726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318.

The product of its digits is 18816, while the sum is 34.

The square root of 2278726 is about 1509.5449645506. The cubic root of 2278726 is about 131.5923681300.

The spelling of 2278726 in words is "two million, two hundred seventy-eight thousand, seven hundred twenty-six".