2001546 has 48 divisors (see below), whose sum is σ = 4762368. Its totient is φ = 604800.

The previous prime is 2001541. The next prime is 2001547. The reversal of 2001546 is 6451002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2001541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9381 + ... + 9591.

It is an arithmetic number, because the mean of its divisors is an integer number (99216).

2^2001546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2381184).

2001546 is an abundant number, since it is smaller than the sum of its proper divisors (2760822).

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

2001546 is a wasteful number, since it uses less digits than its factorization.

2001546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2001546 is about 1414.7600503266. The cubic root of 2001546 is about 126.0245605939.

Adding to 2001546 its reverse (6451002), we get a palindrome (8452548).

The spelling of 2001546 in words is "two million, one thousand, five hundred forty-six".