4006816478 has 8 divisors (see below), whose sum is σ = 6868828272. Its totient is φ = 1717207056.

The previous prime is 4006816447. The next prime is 4006816487. The reversal of 4006816478 is 8746186004.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143100575 + ... + 143100602.

It is an arithmetic number, because the mean of its divisors is an integer number (858603534).

Almost surely, 2^4006816478 is an apocalyptic number.

4006816478 is a deficient number, since it is larger than the sum of its proper divisors (2862011794).

4006816478 is a wasteful number, since it uses less digits than its factorization.

4006816478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286201186.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 4006816478 is about 63299.4192548399. The cubic root of 4006816478 is about 1588.3022472761.

The spelling of 4006816478 in words is "four billion, six million, eight hundred sixteen thousand, four hundred seventy-eight".