4000397178 has 16 divisors (see below), whose sum is σ = 8136401760. Its totient is φ = 1310864496.

The previous prime is 4000397059. The next prime is 4000397197. The reversal of 4000397178 is 8717930004.

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, 5649925 + ... + 5650632.

It is an arithmetic number, because the mean of its divisors is an integer number (508525110).

Almost surely, 2^4000397178 is an apocalyptic number.

4000397178 is an abundant number, since it is smaller than the sum of its proper divisors (4136004582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4000397178 is a wasteful number, since it uses less digits than its factorization.

4000397178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11300621.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 4000397178 is about 63248.6930932173. The cubic root of 4000397178 is about 1587.4535902939.

The spelling of 4000397178 in words is "four billion, three hundred ninety-seven thousand, one hundred seventy-eight".