1918044 has 18 divisors (see below), whose sum is σ = 4848480. Its totient is φ = 639336.

The previous prime is 1918027. The next prime is 1918067. The reversal of 1918044 is 4408191.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 1917999 and 1918017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26604 + ... + 26675.

It is an arithmetic number, because the mean of its divisors is an integer number (269360).

2^1918044 is an apocalyptic number.

It is an amenable number.

1918044 is an abundant number, since it is smaller than the sum of its proper divisors (2930436).

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

1918044 is a wasteful number, since it uses less digits than its factorization.

1918044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53289 (or 53284 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1918044 is about 1384.9346554982. The cubic root of 1918044 is about 124.2470793225.

The spelling of 1918044 in words is "one million, nine hundred eighteen thousand, forty-four".