201040 has 40 divisors (see below), whose sum is σ = 535680. Its totient is φ = 68736.

The previous prime is 201037. The next prime is 201049. The reversal of 201040 is 40102.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381 + ... + 739.

It is an arithmetic number, because the mean of its divisors is an integer number (13392).

2²⁰¹⁰⁴⁰ is an apocalyptic number.

201040 is a gapful number since it is divisible by the number (20) 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 201040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267840).

201040 is an abundant number, since it is smaller than the sum of its proper divisors (334640).

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

201040 is a wasteful number, since it uses less digits than its factorization.

201040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 201040 is about 448.3748431837. The cubic root of 201040 is about 58.5815455174.

Adding to 201040 its reverse (40102), we get a palindrome (241142).

The spelling of 201040 in words is "two hundred one thousand, forty", and thus it is an iban number.