1665048 has 128 divisors (see below), whose sum is σ = 5598720. Its totient is φ = 399360.

The previous prime is 1665043. The next prime is 1665061. The reversal of 1665048 is 8405661.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1665043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31390 + ... + 31442.

It is an arithmetic number, because the mean of its divisors is an integer number (43740).

2^1665048 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 1665048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2799360).

1665048 is an abundant number, since it is smaller than the sum of its proper divisors (3933672).

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

1665048 is a wasteful number, since it uses less digits than its factorization.

1665048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1665048 is about 1290.3673895445. The cubic root of 1665048 is about 118.5247148863.

The spelling of 1665048 in words is "one million, six hundred sixty-five thousand, forty-eight".