1332540 has 72 divisors (see below), whose sum is σ = 4416048. Its totient is φ = 322560.

The previous prime is 1332517. The next prime is 1332547. The reversal of 1332540 is 452331.

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

It is an Ulam number.

It is a nialpdrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1332547) 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, 1644 + ... + 2316.

It is an arithmetic number, because the mean of its divisors is an integer number (61334).

2^1332540 is an apocalyptic number.

1332540 is a gapful number since it is divisible by the number (10) 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 1332540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2208024).

1332540 is an abundant number, since it is smaller than the sum of its proper divisors (3083508).

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

1332540 is a wasteful number, since it uses less digits than its factorization.

1332540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 1332540 is about 1154.3569638548. The cubic root of 1332540 is about 110.0424078910.

Adding to 1332540 its reverse (452331), we get a palindrome (1784871).

The spelling of 1332540 in words is "one million, three hundred thirty-two thousand, five hundred forty".