4027039978 has 8 divisors (see below), whose sum is σ = 6505218468. Its totient is φ = 1858633824.

The previous prime is 4027039921. The next prime is 4027039979. The reversal of 4027039978 is 8799307204.

It can be written as a sum of positive squares in 2 ways, for example, as 3998918169 + 28121809 = 63237^2 + 5303^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4027039979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77443051 + ... + 77443102.

Almost surely, 2^4027039978 is an apocalyptic number.

4027039978 is a deficient number, since it is larger than the sum of its proper divisors (2478178490).

4027039978 is a wasteful number, since it uses less digits than its factorization.

4027039978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154886168.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 4027039978 is about 63458.9629445676. The cubic root of 4027039978 is about 1590.9699628625.

The spelling of 4027039978 in words is "four billion, twenty-seven million, thirty-nine thousand, nine hundred seventy-eight".