1802020844 has 48 divisors (see below), whose sum is σ = 3441023040. Its totient is φ = 820765440.

The previous prime is 1802020799. The next prime is 1802020861. The reversal of 1802020844 is 4480202081.

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, 2725874 + ... + 2726534.

It is an arithmetic number, because the mean of its divisors is an integer number (71687980).

Almost surely, 2^1802020844 is an apocalyptic number.

It is an amenable number.

1802020844 is a deficient number, since it is larger than the sum of its proper divisors (1639002196).

1802020844 is a wasteful number, since it uses less digits than its factorization.

1802020844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290 (or 1288 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 1802020844 is about 42450.2160654101. The cubic root of 1802020844 is about 1216.8954578015.

The spelling of 1802020844 in words is "one billion, eight hundred two million, twenty thousand, eight hundred forty-four".