2230978 has 8 divisors (see below), whose sum is σ = 3543372. Its totient is φ = 1049856.

The previous prime is 2230951. The next prime is 2230979. The reversal of 2230978 is 8790322.

It can be written as a sum of positive squares in 2 ways, for example, as 1708249 + 522729 = 1307^2 + 723^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2230978³ = 33312491665240204056, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2230979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32775 + ... + 32842.

2^2230978 is an apocalyptic number.

2230978 is a deficient number, since it is larger than the sum of its proper divisors (1312394).

2230978 is a wasteful number, since it uses less digits than its factorization.

2230978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65636.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 2230978 is about 1493.6458750320. The cubic root of 2230978 is about 130.6667519899. Note that the first 3 decimals are identical.

The spelling of 2230978 in words is "two million, two hundred thirty thousand, nine hundred seventy-eight".