1002421760 has 160 divisors (see below), whose sum is σ = 2603003040. Its totient is φ = 368934912.

The previous prime is 1002421747. The next prime is 1002421789. The reversal of 1002421760 is 671242001.

It is a tau number, because it is divible by the number of its divisors (160).

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, 1799402 + ... + 1799958.

It is an arithmetic number, because the mean of its divisors is an integer number (16268769).

Almost surely, 2^1002421760 is an apocalyptic number.

1002421760 is a gapful number since it is divisible by the number (10) 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 1002421760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1301501520).

1002421760 is an abundant number, since it is smaller than the sum of its proper divisors (1600581280).

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

1002421760 is an equidigital number, since it uses as much as digits as its factorization.

1002421760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1002421760 is about 31661.0448343070. The cubic root of 1002421760 is about 1000.8066025507.

Adding to 1002421760 its reverse (671242001), we get a palindrome (1673663761).

The spelling of 1002421760 in words is "one billion, two million, four hundred twenty-one thousand, seven hundred sixty".