2278601 has 4 divisors (see below), whose sum is σ = 2453892. Its totient is φ = 2103312.

The previous prime is 2278553. The next prime is 2278631. The reversal of 2278601 is 1068722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 525625 + 1752976 = 725^2 + 1324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2278601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2278631) 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, 87626 + ... + 87651.

It is an arithmetic number, because the mean of its divisors is an integer number (613473).

2^2278601 is an apocalyptic number.

It is an amenable number.

2278601 is a deficient number, since it is larger than the sum of its proper divisors (175291).

2278601 is a wasteful number, since it uses less digits than its factorization.

2278601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175290.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2278601 is about 1509.5035607775. The cubic root of 2278601 is about 131.5899619102.

The spelling of 2278601 in words is "two million, two hundred seventy-eight thousand, six hundred one".