2278803 has 8 divisors (see below), whose sum is σ = 3198400. Its totient is φ = 1439208.

The previous prime is 2278769. The next prime is 2278807. The reversal of 2278803 is 3088722.

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

It is not a de Polignac number, because 2278803 - 2⁹ = 2278291 is a prime.

It is a super-2 number, since 2×2278803² = 10385886225618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2278807) 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, 19933 + ... + 20046.

It is an arithmetic number, because the mean of its divisors is an integer number (399800).

2^2278803 is an apocalyptic number.

2278803 is a deficient number, since it is larger than the sum of its proper divisors (919597).

2278803 is a wasteful number, since it uses less digits than its factorization.

2278803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40001.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2278803 is about 1509.5704687096. The cubic root of 2278803 is about 131.5938503176.

It can be divided in two parts, 2278 and 803, that added together give a triangular number (3081 = T₇₈).

The spelling of 2278803 in words is "two million, two hundred seventy-eight thousand, eight hundred three".