1332331020 has 144 divisors (see below), whose sum is σ = 4210682112. Its totient is φ = 340623360.

The previous prime is 1332331003. The next prime is 1332331027. The reversal of 1332331020 is 201332331.

1332331020 is a `hidden beast` number, since 1 + 332 + 3 + 310 + 20 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1332330984 and 1332331002.

It is not an unprimeable number, because it can be changed into a prime (1332331027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 629484 + ... + 631596.

It is an arithmetic number, because the mean of its divisors is an integer number (29240848).

Almost surely, 2^1332331020 is an apocalyptic number.

1332331020 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 1332331020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2105341056).

1332331020 is an abundant number, since it is smaller than the sum of its proper divisors (2878351092).

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

1332331020 is a wasteful number, since it uses less digits than its factorization.

1332331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272 (or 2267 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1332331020 is about 36501.1098461403. The cubic root of 1332331020 is about 1100.3665500183.

Adding to 1332331020 its reverse (201332331), we get a palindrome (1533663351).

The spelling of 1332331020 in words is "one billion, three hundred thirty-two million, three hundred thirty-one thousand, twenty".