1665252 has 48 divisors (see below), whose sum is σ = 4576320. Its totient is φ = 521856.

The previous prime is 1665247. The next prime is 1665263. The reversal of 1665252 is 2525661.

1665252 is a `hidden beast` number, since 1 + 6 + 652 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 1383 + ... + 2289.

It is an arithmetic number, because the mean of its divisors is an integer number (95340).

2^1665252 is an apocalyptic number.

1665252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1665252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2288160).

1665252 is an abundant number, since it is smaller than the sum of its proper divisors (2911068).

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

1665252 is a wasteful number, since it uses less digits than its factorization.

1665252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937 (or 929 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1665252 is about 1290.4464343784. The cubic root of 1665252 is about 118.5295551981.

The spelling of 1665252 in words is "one million, six hundred sixty-five thousand, two hundred fifty-two".