4280646040 has 96 divisors (see below), whose sum is σ = 11144070000. Its totient is φ = 1474640640.

The previous prime is 4280646023. The next prime is 4280646043. The reversal of 4280646040 is 406460824.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4280645987 and 4280646005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4280646043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68686 + ... + 115234.

Almost surely, 2^4280646040 is an apocalyptic number.

4280646040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4280646040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5572035000).

4280646040 is an abundant number, since it is smaller than the sum of its proper divisors (6863423960).

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

4280646040 is a wasteful number, since it uses less digits than its factorization.

4280646040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46601 (or 46586 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 4280646040 is about 65426.6462536481. The cubic root of 4280646040 is about 1623.6899630187.

The spelling of 4280646040 in words is "four billion, two hundred eighty million, six hundred forty-six thousand, forty".