4202978 has 32 divisors (see below), whose sum is σ = 7411824. Its totient is φ = 1769472.

The previous prime is 4202969. The next prime is 4202981. The reversal of 4202978 is 8792024.

It can be written as a sum of positive squares in 8 ways, for example, as 3892729 + 310249 = 1973^2 + 557^2 .

It is a d-powerful number, because it can be written as 4¹¹ + 2³ + 0 + 2¹¹ + 9⁴ + 7² + 8 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16226 + ... + 16482.

Almost surely, 2^4202978 is an apocalyptic number.

4202978 is a deficient number, since it is larger than the sum of its proper divisors (3208846).

4202978 is a wasteful number, since it uses less digits than its factorization.

4202978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 4202978 is about 2050.1165820509. The cubic root of 4202978 is about 161.3809888512.

Subtracting from 4202978 its product of nonzero digits (8064), we obtain a palindrome (4194914).

The spelling of 4202978 in words is "four million, two hundred two thousand, nine hundred seventy-eight".