803990052 has 36 divisors (see below), whose sum is σ = 2042966016. Its totient is φ = 266591280.

The previous prime is 803990009. The next prime is 803990059. The reversal of 803990052 is 250099308.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 803989989 and 803990016.

It is not an unprimeable number, because it can be changed into a prime (803990059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51588 + ... + 65339.

It is an arithmetic number, because the mean of its divisors is an integer number (56749056).

Almost surely, 2^803990052 is an apocalyptic number.

It is an amenable number.

803990052 is an abundant number, since it is smaller than the sum of its proper divisors (1238975964).

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

803990052 is a wasteful number, since it uses less digits than its factorization.

803990052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117128 (or 117123 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 803990052 is about 28354.7183375184. The cubic root of 803990052 is about 929.8585563592.

The spelling of 803990052 in words is "eight hundred three million, nine hundred ninety thousand, fifty-two".