2246778 has 56 divisors (see below), whose sum is σ = 5351328. Its totient is φ = 705672.

The previous prime is 2246767. The next prime is 2246789. The reversal of 2246778 is 8776422.

It is an interprime number because it is at equal distance from previous prime (2246767) and next prime (2246789).

It is a super-2 number, since 2×2246778² = 10096022762568, which contains 22 as substring.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 33501 + ... + 33567.

2^2246778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2246778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2675664).

2246778 is an abundant number, since it is smaller than the sum of its proper divisors (3104550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2246778 is an equidigital number, since it uses as much as digits as its factorization.

2246778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 95 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 2246778 is about 1498.9256152325. The cubic root of 2246778 is about 130.9744914690.

The spelling of 2246778 in words is "two million, two hundred forty-six thousand, seven hundred seventy-eight".