802049680 has 20 divisors (see below), whose sum is σ = 1864765692. Its totient is φ = 320819840.

The previous prime is 802049671. The next prime is 802049707. The reversal of 802049680 is 86940208.

It can be written as a sum of positive squares in 2 ways, for example, as 252428544 + 549621136 = 15888^2 + 23444^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5012731 + ... + 5012890.

Almost surely, 2^802049680 is an apocalyptic number.

802049680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

802049680 is an abundant number, since it is smaller than the sum of its proper divisors (1062716012).

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

802049680 is a wasteful number, since it uses less digits than its factorization.

802049680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10025634 (or 10025628 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 802049680 is about 28320.4816343225. The cubic root of 802049680 is about 929.1099049115.

Adding to 802049680 its reverse (86940208), we get a palindrome (888989888).

The spelling of 802049680 in words is "eight hundred two million, forty-nine thousand, six hundred eighty".