4028547440 has 20 divisors (see below), whose sum is σ = 9366372984. Its totient is φ = 1611418944.

The previous prime is 4028547431. The next prime is 4028547461. The reversal of 4028547440 is 447458204.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 4028547394 and 4028547403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25178342 + ... + 25178501.

Almost surely, 2^4028547440 is an apocalyptic number.

4028547440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4028547440 is an abundant number, since it is smaller than the sum of its proper divisors (5337825544).

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

4028547440 is a wasteful number, since it uses less digits than its factorization.

4028547440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50356856 (or 50356850 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 38.

The square root of 4028547440 is about 63470.8392886056. The cubic root of 4028547440 is about 1591.1684566758.

The spelling of 4028547440 in words is "four billion, twenty-eight million, five hundred forty-seven thousand, four hundred forty".