1332557406 has 80 divisors (see below), whose sum is σ = 3033169920. Its totient is φ = 437225040.

The previous prime is 1332557399. The next prime is 1332557407. The reversal of 1332557406 is 6047552331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1332557407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4917051 + ... + 4917321.

It is an arithmetic number, because the mean of its divisors is an integer number (37914624).

Almost surely, 2^1332557406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1332557406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1516584960).

1332557406 is an abundant number, since it is smaller than the sum of its proper divisors (1700612514).

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

1332557406 is a wasteful number, since it uses less digits than its factorization.

1332557406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 1332557406 is about 36504.2107982079. The cubic root of 1332557406 is about 1100.4288702350.

The spelling of 1332557406 in words is "one billion, three hundred thirty-two million, five hundred fifty-seven thousand, four hundred six".