2278031 has 8 divisors (see below), whose sum is σ = 2613024. Its totient is φ = 1945440.

The previous prime is 2278027. The next prime is 2278033. The reversal of 2278031 is 1308722.

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

It is not a de Polignac number, because 2278031 - 2² = 2278027 is a prime.

It is a super-2 number, since 2×2278031² = 10378850473922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2277988 and 2278006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278033) 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, 2561 + ... + 3333.

It is an arithmetic number, because the mean of its divisors is an integer number (326628).

2^2278031 is an apocalyptic number.

2278031 is a deficient number, since it is larger than the sum of its proper divisors (334993).

2278031 is an equidigital number, since it uses as much as digits as its factorization.

2278031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2278031 is about 1509.3147451741. The cubic root of 2278031 is about 131.5789884323.

The spelling of 2278031 in words is "two million, two hundred seventy-eight thousand, thirty-one".