4002778604 has 12 divisors (see below), whose sum is σ = 7641668328. Its totient is φ = 1819444800.

The previous prime is 4002778601. The next prime is 4002778607. The reversal of 4002778604 is 4068772004.

It is an interprime number because it is at equal distance from previous prime (4002778601) and next prime (4002778607).

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (4002778601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45486077 + ... + 45486164.

It is an arithmetic number, because the mean of its divisors is an integer number (636805694).

Almost surely, 2^4002778604 is an apocalyptic number.

4002778604 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4002778604 is a deficient number, since it is larger than the sum of its proper divisors (3638889724).

4002778604 is a wasteful number, since it uses less digits than its factorization.

4002778604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90972256 (or 90972254 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 4002778604 is about 63267.5161832674. The cubic root of 4002778604 is about 1587.7685301344.

The spelling of 4002778604 in words is "four billion, two million, seven hundred seventy-eight thousand, six hundred four".