4028491000 has 32 divisors (see below), whose sum is σ = 9426671280. Its totient is φ = 1611396000.

The previous prime is 4028490971. The next prime is 4028491063. The reversal of 4028491000 is 1948204.

4028491000 = 297² + 298² + ... + 2296².

It is a self number, because there is not a number n which added to its sum of digits gives 4028491000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2013246 + ... + 2015245.

Almost surely, 2^4028491000 is an apocalyptic number.

4028491000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4028491000 is an abundant number, since it is smaller than the sum of its proper divisors (5398180280).

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

4028491000 is a wasteful number, since it uses less digits than its factorization.

4028491000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4028512 (or 4028498 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 4028491000 is about 63470.3946734223. The cubic root of 4028491000 is about 1591.1610258778.

The spelling of 4028491000 in words is "four billion, twenty-eight million, four hundred ninety-one thousand".