1397432 has 8 divisors (see below), whose sum is σ = 2620200. Its totient is φ = 698712.

The previous prime is 1397359. The next prime is 1397437. The reversal of 1397432 is 2347931.

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

It is a junction number, because it is equal to n+sod(n) for n = 1397395 and 1397404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87332 + ... + 87347.

It is an arithmetic number, because the mean of its divisors is an integer number (327525).

2^1397432 is an apocalyptic number.

It is an amenable number.

1397432 is a deficient number, since it is larger than the sum of its proper divisors (1222768).

1397432 is a wasteful number, since it uses less digits than its factorization.

1397432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174685 (or 174681 counting only the distinct ones).

The product of its digits is 4536, while the sum is 29.

The square root of 1397432 is about 1182.1302804683. The cubic root of 1397432 is about 111.8004525057.

The spelling of 1397432 in words is "one million, three hundred ninety-seven thousand, four hundred thirty-two".