1332144020 has 24 divisors (see below), whose sum is σ = 2810056704. Its totient is φ = 530466336.

The previous prime is 1332144013. The next prime is 1332144031. The reversal of 1332144020 is 204412331.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1332143983 and 1332144001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144884 + ... + 153803.

It is an arithmetic number, because the mean of its divisors is an integer number (117085696).

Almost surely, 2^1332144020 is an apocalyptic number.

1332144020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1332144020 is an abundant number, since it is smaller than the sum of its proper divisors (1477912684).

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

1332144020 is a wasteful number, since it uses less digits than its factorization.

1332144020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298919 (or 298917 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1332144020 is about 36498.5481903048. The cubic root of 1332144020 is about 1100.3150667734.

Adding to 1332144020 its reverse (204412331), we get a palindrome (1536556351).

The spelling of 1332144020 in words is "one billion, three hundred thirty-two million, one hundred forty-four thousand, twenty".