4049280040 has 64 divisors (see below), whose sum is σ = 9972642960. Its totient is φ = 1470597120.

The previous prime is 4049279989. The next prime is 4049280071. The reversal of 4049280040 is 400829404.

It can be written as a sum of positive squares in 8 ways, for example, as 81036004 + 3968244036 = 9002^2 + 62994^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4049279984 and 4049280011.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32109 + ... + 95548.

Almost surely, 2^4049280040 is an apocalyptic number.

4049280040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4049280040 is an abundant number, since it is smaller than the sum of its proper divisors (5923362920).

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

4049280040 is a wasteful number, since it uses less digits than its factorization.

4049280040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127742 (or 127738 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 4049280040 is about 63633.9535153993. The cubic root of 4049280040 is about 1593.8933948847.

It can be divided in two parts, 4049 and 280040, that added together give a square (284089 = 533²).

The spelling of 4049280040 in words is "four billion, forty-nine million, two hundred eighty thousand, forty".