4030978 has 16 divisors (see below), whose sum is σ = 6995520. Its totient is φ = 1706256.

The previous prime is 4030973. The next prime is 4030979. The reversal of 4030978 is 8790304.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4030973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573 + ... + 2896.

It is an arithmetic number, because the mean of its divisors is an integer number (437220).

Almost surely, 2^4030978 is an apocalyptic number.

4030978 is a deficient number, since it is larger than the sum of its proper divisors (2964542).

4030978 is a wasteful number, since it uses less digits than its factorization.

4030978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3561.

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

The square root of 4030978 is about 2007.7295634622. The cubic root of 4030978 is about 159.1488394398.

The spelling of 4030978 in words is "four million, thirty thousand, nine hundred seventy-eight".