802140020 has 48 divisors (see below), whose sum is σ = 1887314688. Its totient is φ = 283800960.

The previous prime is 802139999. The next prime is 802140077. The reversal of 802140020 is 20041208.

It is a super-2 number, since 2×802140020² = 1286857223371200800, which contains 22 as substring.

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, 41132 + ... + 57411.

It is an arithmetic number, because the mean of its divisors is an integer number (39319056).

Almost surely, 2^802140020 is an apocalyptic number.

It is an amenable number.

802140020 is an abundant number, since it is smaller than the sum of its proper divisors (1085174668).

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

802140020 is a wasteful number, since it uses less digits than its factorization.

802140020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98600 (or 98598 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 802140020 is about 28322.0765481629. The cubic root of 802140020 is about 929.1447874713.

Adding to 802140020 its reverse (20041208), we get a palindrome (822181228).

The spelling of 802140020 in words is "eight hundred two million, one hundred forty thousand, twenty".