4078868 has 6 divisors (see below), whose sum is σ = 7138026. Its totient is φ = 2039432.

The previous prime is 4078831. The next prime is 4078871. The reversal of 4078868 is 8688704.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3928324 + 150544 = 1982^2 + 388^2 .

It is a super-2 number, since 2×4078868² = 33274328322848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509855 + ... + 509862.

It is an arithmetic number, because the mean of its divisors is an integer number (1189671).

Almost surely, 2^4078868 is an apocalyptic number.

It is an amenable number.

4078868 is a deficient number, since it is larger than the sum of its proper divisors (3059158).

4078868 is a wasteful number, since it uses less digits than its factorization.

4078868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019721 (or 1019719 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 4078868 is about 2019.6207564788. The cubic root of 4078868 is about 159.7766153491.

The spelling of 4078868 in words is "four million, seventy-eight thousand, eight hundred sixty-eight".