4028538940 has 24 divisors (see below), whose sum is σ = 8461145952. Its totient is φ = 1611184320.

The previous prime is 4028538937. The next prime is 4028538953. The reversal of 4028538940 is 498358204.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225745 + ... + 242935.

It is an arithmetic number, because the mean of its divisors is an integer number (352547748).

Almost surely, 2^4028538940 is an apocalyptic number.

It is an amenable number.

4028538940 is an abundant number, since it is smaller than the sum of its proper divisors (4432607012).

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

4028538940 is a wasteful number, since it uses less digits than its factorization.

4028538940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28917 (or 28915 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 4028538940 is about 63470.7723286868. The cubic root of 4028538940 is about 1591.1673375842.

The spelling of 4028538940 in words is "four billion, twenty-eight million, five hundred thirty-eight thousand, nine hundred forty".