2284778 has 4 divisors (see below), whose sum is σ = 3427170. Its totient is φ = 1142388.

The previous prime is 2284757. The next prime is 2284831. The reversal of 2284778 is 8774822.

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

It can be written as a sum of positive squares in only one way, i.e., 2093809 + 190969 = 1447^2 + 437^2 .

It is a d-powerful number, because it can be written as 2 + 2²¹ + 8⁵ + 4⁶ + 7³ + 7⁶ + 8⁵ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571193 + ... + 571196.

2^2284778 is an apocalyptic number.

2284778 is a deficient number, since it is larger than the sum of its proper divisors (1142392).

2284778 is a wasteful number, since it uses less digits than its factorization.

2284778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142391.

The product of its digits is 50176, while the sum is 38.

The square root of 2284778 is about 1511.5482129261. The cubic root of 2284778 is about 131.7087625551.

The spelling of 2284778 in words is "two million, two hundred eighty-four thousand, seven hundred seventy-eight".