802740140 has 24 divisors (see below), whose sum is σ = 1689414720. Its totient is φ = 320398848.

The previous prime is 802740121. The next prime is 802740163. The reversal of 802740140 is 41047208.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34085 + ... + 52604.

It is an arithmetic number, because the mean of its divisors is an integer number (70392280).

Almost surely, 2^802740140 is an apocalyptic number.

It is an amenable number.

802740140 is an abundant number, since it is smaller than the sum of its proper divisors (886674580).

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

802740140 is a wasteful number, since it uses less digits than its factorization.

802740140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87161 (or 87159 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 802740140 is about 28332.6691294696. The cubic root of 802740140 is about 929.3764425266.

Adding to 802740140 its reverse (41047208), we get a palindrome (843787348).

The spelling of 802740140 in words is "eight hundred two million, seven hundred forty thousand, one hundred forty".