1396543732 has 12 divisors (see below), whose sum is σ = 2444225056. Its totient is φ = 698193720.

The previous prime is 1396543721. The next prime is 1396543781. The reversal of 1396543732 is 2373456931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42703 + ... + 67945.

Almost surely, 2^1396543732 is an apocalyptic number.

It is an amenable number.

1396543732 is a deficient number, since it is larger than the sum of its proper divisors (1047681324).

1396543732 is a wasteful number, since it uses less digits than its factorization.

1396543732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39078 (or 39076 counting only the distinct ones).

The product of its digits is 408240, while the sum is 43.

The square root of 1396543732 is about 37370.3590028247. The cubic root of 1396543732 is about 1117.7675908961.

The spelling of 1396543732 in words is "one billion, three hundred ninety-six million, five hundred forty-three thousand, seven hundred thirty-two".