4028452940 has 48 divisors (see below), whose sum is σ = 8990642304. Its totient is φ = 1510963200.

The previous prime is 4028452931. The next prime is 4028452969. The reversal of 4028452940 is 492548204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4028452894 and 4028452903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70280 + ... + 114000.

It is an arithmetic number, because the mean of its divisors is an integer number (187305048).

Almost surely, 2^4028452940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4028452940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4495321152).

4028452940 is an abundant number, since it is smaller than the sum of its proper divisors (4962189364).

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

4028452940 is a wasteful number, since it uses less digits than its factorization.

4028452940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44018 (or 44016 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 4028452940 is about 63470.0948478888. The cubic root of 4028452940 is about 1591.1560149213.

The spelling of 4028452940 in words is "four billion, twenty-eight million, four hundred fifty-two thousand, nine hundred forty".