4028177920 has 80 divisors (see below), whose sum is σ = 10401209280. Its totient is φ = 1487314944.

The previous prime is 4028177917. The next prime is 4028177941. The reversal of 4028177920 is 297718204.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27240 + ... + 93799.

It is an arithmetic number, because the mean of its divisors is an integer number (130015116).

Almost surely, 2^4028177920 is an apocalyptic number.

4028177920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4028177920 is an abundant number, since it is smaller than the sum of its proper divisors (6373031360).

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

4028177920 is a wasteful number, since it uses less digits than its factorization.

4028177920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121075 (or 121059 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 4028177920 is about 63467.9282787771. The cubic root of 4028177920 is about 1591.1198050171.

The spelling of 4028177920 in words is "four billion, twenty-eight million, one hundred seventy-seven thousand, nine hundred twenty".