2446978 has 4 divisors (see below), whose sum is σ = 3670470. Its totient is φ = 1223488.

The previous prime is 2446973. The next prime is 2446981. The reversal of 2446978 is 8796442.

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., 2319529 + 127449 = 1523^2 + 357^2 .

It is a d-powerful number, because it can be written as 2 + 4⁹ + 4¹⁰ + 6⁷ + 9 + 7⁷ + 8⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 2446978.

It is not an unprimeable number, because it can be changed into a prime (2446973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611743 + ... + 611746.

2^2446978 is an apocalyptic number.

2446978 is a deficient number, since it is larger than the sum of its proper divisors (1223492).

2446978 is a wasteful number, since it uses less digits than its factorization.

2446978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223491.

The product of its digits is 96768, while the sum is 40.

The square root of 2446978 is about 1564.2819438963. The cubic root of 2446978 is about 134.7545241911.

The spelling of 2446978 in words is "two million, four hundred forty-six thousand, nine hundred seventy-eight".