802287440 has 80 divisors (see below), whose sum is σ = 1945161216. Its totient is φ = 307392000.

The previous prime is 802287419. The next prime is 802287503. The reversal of 802287440 is 44782208.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 802287440.

It is a congruent number.

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, 248879 + ... + 252081.

Almost surely, 2^802287440 is an apocalyptic number.

802287440 is a gapful number since it is divisible by the number (80) 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 802287440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (972580608).

802287440 is an abundant number, since it is smaller than the sum of its proper divisors (1142873776).

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

802287440 is a wasteful number, since it uses less digits than its factorization.

802287440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348 (or 3342 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 802287440 is about 28324.6789920027. The cubic root of 802287440 is about 929.2017044395.

The spelling of 802287440 in words is "eight hundred two million, two hundred eighty-seven thousand, four hundred forty".