4028915387 has 8 divisors (see below), whose sum is σ = 4698444000. Its totient is φ = 3453355752.

The previous prime is 4028915383. The next prime is 4028915419. The reversal of 4028915387 is 7835198204.

It is a happy number.

It is not a de Polignac number, because 4028915387 - 2² = 4028915383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4028915383) by changing a digit.

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, 5872712 + ... + 5873397.

It is an arithmetic number, because the mean of its divisors is an integer number (587305500).

Almost surely, 2^4028915387 is an apocalyptic number.

4028915387 is a deficient number, since it is larger than the sum of its proper divisors (669528613).

4028915387 is an equidigital number, since it uses as much as digits as its factorization.

4028915387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11746130 (or 11746116 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 4028915387 is about 63473.7377739802. The cubic root of 4028915387 is about 1591.2168982747.

The spelling of 4028915387 in words is "four billion, twenty-eight million, nine hundred fifteen thousand, three hundred eighty-seven".