1355331432 has 128 divisors (see below), whose sum is σ = 4227874560. Its totient is φ = 352512000.

The previous prime is 1355331413. The next prime is 1355331449. The reversal of 1355331432 is 2341335531.

It is a self number, because there is not a number n which added to its sum of digits gives 1355331432.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155182 + ... + 163682.

It is an arithmetic number, because the mean of its divisors is an integer number (33030270).

Almost surely, 2^1355331432 is an apocalyptic number.

1355331432 is a gapful number since it is divisible by the number (12) 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 1355331432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2113937280).

1355331432 is an abundant number, since it is smaller than the sum of its proper divisors (2872543128).

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

1355331432 is a wasteful number, since it uses less digits than its factorization.

1355331432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8603 (or 8599 counting only the distinct ones).

The product of its digits is 16200, while the sum is 30.

The square root of 1355331432 is about 36814.8262524761. The cubic root of 1355331432 is about 1106.6624395413.

Adding to 1355331432 its reverse (2341335531), we get a palindrome (3696666963).

The spelling of 1355331432 in words is "one billion, three hundred fifty-five million, three hundred thirty-one thousand, four hundred thirty-two".