2281078 has 4 divisors (see below), whose sum is σ = 3421620. Its totient is φ = 1140538.

The previous prime is 2281061. The next prime is 2281079. The reversal of 2281078 is 8701822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8701822 = 2 ⋅4350911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570268 + ... + 570271.

It is an arithmetic number, because the mean of its divisors is an integer number (855405).

2^2281078 is an apocalyptic number.

2281078 is a deficient number, since it is larger than the sum of its proper divisors (1140542).

2281078 is a wasteful number, since it uses less digits than its factorization.

2281078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140541.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2281078 is about 1510.3238063409. The cubic root of 2281078 is about 131.6376271658.

The spelling of 2281078 in words is "two million, two hundred eighty-one thousand, seventy-eight".