1332421040 has 20 divisors (see below), whose sum is σ = 3097879104. Its totient is φ = 532968384.

The previous prime is 1332421009. The next prime is 1332421049. The reversal of 1332421040 is 401242331.

It is a tau number, because it is divible by the number of its divisors (20).

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

It is not an unprimeable number, because it can be changed into a prime (1332421049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8327552 + ... + 8327711.

Almost surely, 2^1332421040 is an apocalyptic number.

1332421040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1332421040 is an abundant number, since it is smaller than the sum of its proper divisors (1765458064).

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

1332421040 is a wasteful number, since it uses less digits than its factorization.

1332421040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16655276 (or 16655270 counting only the distinct ones).

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

The square root of 1332421040 is about 36502.3429385019. The cubic root of 1332421040 is about 1100.3913318391.

Adding to 1332421040 its reverse (401242331), we get a palindrome (1733663371).

The spelling of 1332421040 in words is "one billion, three hundred thirty-two million, four hundred twenty-one thousand, forty".