1918448 has 30 divisors (see below), whose sum is σ = 4325616. Its totient is φ = 821856.

The previous prime is 1918439. The next prime is 1918451. The reversal of 1918448 is 8448191.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 440 + ... + 2007.

2^1918448 is an apocalyptic number.

It is an amenable number.

1918448 is an abundant number, since it is smaller than the sum of its proper divisors (2407168).

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

1918448 is a wasteful number, since it uses less digits than its factorization.

1918448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469 (or 2456 counting only the distinct ones).

The product of its digits is 9216, while the sum is 35.

The square root of 1918448 is about 1385.0805030755. The cubic root of 1918448 is about 124.2558021492.

The spelling of 1918448 in words is "one million, nine hundred eighteen thousand, four hundred forty-eight".