4249778 has 16 divisors (see below), whose sum is σ = 6917400. Its totient is φ = 1946496.

The previous prime is 4249769. The next prime is 4249789. The reversal of 4249778 is 8779424.

It can be written as a sum of positive squares in 4 ways, for example, as 1570009 + 2679769 = 1253^2 + 1637^2 .

It is a super-2 number, since 2×4249778² = 36121226098568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3326 + ... + 4422.

Almost surely, 2^4249778 is an apocalyptic number.

4249778 is a deficient number, since it is larger than the sum of its proper divisors (2667622).

4249778 is a wasteful number, since it uses less digits than its factorization.

4249778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261.

The product of its digits is 112896, while the sum is 41.

The square root of 4249778 is about 2061.4989691969. The cubic root of 4249778 is about 161.9777696468.

The spelling of 4249778 in words is "four million, two hundred forty-nine thousand, seven hundred seventy-eight".