4028946840 has 48 divisors (see below), whose sum is σ = 13094078400. Its totient is φ = 1074385728.

The previous prime is 4028946821. The next prime is 4028946847. The reversal of 4028946840 is 486498204.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028946847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5595400 + ... + 5596119.

It is an arithmetic number, because the mean of its divisors is an integer number (272793300).

Almost surely, 2^4028946840 is an apocalyptic number.

4028946840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4028946840 is an abundant number, since it is smaller than the sum of its proper divisors (9065131560).

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

4028946840 is a wasteful number, since it uses less digits than its factorization.

4028946840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11191536 (or 11191529 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 4028946840 is about 63473.9855373837. The cubic root of 4028946840 is about 1591.2210390429.

The spelling of 4028946840 in words is "four billion, twenty-eight million, nine hundred forty-six thousand, eight hundred forty".