1331432 has 8 divisors (see below), whose sum is σ = 2496450. Its totient is φ = 665712.

The previous prime is 1331431. The next prime is 1331437. The reversal of 1331432 is 2341331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 988036 + 343396 = 994^2 + 586^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1331432² = 3545422341248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1331432.

It is not an unprimeable number, because it can be changed into a prime (1331431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83207 + ... + 83222.

2^1331432 is an apocalyptic number.

It is an amenable number.

1331432 is a deficient number, since it is larger than the sum of its proper divisors (1165018).

1331432 is a wasteful number, since it uses less digits than its factorization.

1331432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166435 (or 166431 counting only the distinct ones).

The product of its digits is 216, while the sum is 17.

The square root of 1331432 is about 1153.8769431790. The cubic root of 1331432 is about 110.0118995391.

Adding to 1331432 its reverse (2341331), we get a palindrome (3672763).

The spelling of 1331432 in words is "one million, three hundred thirty-one thousand, four hundred thirty-two".