1392128 has 20 divisors (see below), whose sum is σ = 2782560. Its totient is φ = 695808.

The previous prime is 1392103. The next prime is 1392133. The reversal of 1392128 is 8212931.

It is a junction number, because it is equal to n+sod(n) for n = 1392097 and 1392106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 848 + ... + 1871.

It is an arithmetic number, because the mean of its divisors is an integer number (139128).

2^1392128 is an apocalyptic number.

It is an amenable number.

1392128 is a deficient number, since it is larger than the sum of its proper divisors (1390432).

1392128 is an frugal number, since it uses more digits than its factorization.

1392128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737 (or 2721 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 1392128 is about 1179.8847401335. The cubic root of 1392128 is about 111.6588257161.

The spelling of 1392128 in words is "one million, three hundred ninety-two thousand, one hundred twenty-eight".