803444840 has 64 divisors (see below), whose sum is σ = 1988521920. Its totient is φ = 292142400.

The previous prime is 803444821. The next prime is 803444867. The reversal of 803444840 is 48444308.

It is a super-2 number, since 2×803444840² = 1291047221845251200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 803444840.

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, 45695 + ... + 60785.

It is an arithmetic number, because the mean of its divisors is an integer number (31070655).

Almost surely, 2^803444840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 803444840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (994260960).

803444840 is an abundant number, since it is smaller than the sum of its proper divisors (1185077080).

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

803444840 is a wasteful number, since it uses less digits than its factorization.

803444840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15135 (or 15109 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 35.

The square root of 803444840 is about 28345.1025752245. The cubic root of 803444840 is about 929.6483196435.

It can be divided in two parts, 80344 and 4840, that added together give a cube (85184 = 44³).

The spelling of 803444840 in words is "eight hundred three million, four hundred forty-four thousand, eight hundred forty".