1332020340 has 144 divisors (see below), whose sum is σ = 4627983360. Its totient is φ = 303782400.

The previous prime is 1332020309. The next prime is 1332020353. The reversal of 1332020340 is 430202331.

1332020340 is a `hidden beast` number, since 1 + 3 + 320 + 2 + 0 + 340 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 756381 + ... + 758139.

Almost surely, 2^1332020340 is an apocalyptic number.

1332020340 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 1332020340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2313991680).

1332020340 is an abundant number, since it is smaller than the sum of its proper divisors (3295963020).

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

1332020340 is a wasteful number, since it uses less digits than its factorization.

1332020340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382 (or 2377 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1332020340 is about 36496.8538370090. The cubic root of 1332020340 is about 1100.2810136037.

Adding to 1332020340 its reverse (430202331), we get a palindrome (1762222671).

The spelling of 1332020340 in words is "one billion, three hundred thirty-two million, twenty thousand, three hundred forty".