4287279440 has 40 divisors (see below), whose sum is σ = 10094115840. Its totient is φ = 1693201536.

The previous prime is 4287279433. The next prime is 4287279449. The reversal of 4287279440 is 449727824.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4287279449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332864 + ... + 345503.

It is an arithmetic number, because the mean of its divisors is an integer number (252352896).

Almost surely, 2^4287279440 is an apocalyptic number.

4287279440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4287279440 is an abundant number, since it is smaller than the sum of its proper divisors (5806836400).

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

4287279440 is a wasteful number, since it uses less digits than its factorization.

4287279440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678459 (or 678453 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 47.

The square root of 4287279440 is about 65477.3200428973. The cubic root of 4287279440 is about 1624.5282341757.

The spelling of 4287279440 in words is "four billion, two hundred eighty-seven million, two hundred seventy-nine thousand, four hundred forty".