1392528 has 40 divisors (see below), whose sum is σ = 3659488. Its totient is φ = 456192.

The previous prime is 1392527. The next prime is 1392539. The reversal of 1392528 is 8252931.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1392495 and 1392504.

It is not an unprimeable number, because it can be changed into a prime (1392527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3000 + ... + 3432.

2^1392528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1392528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1829744).

1392528 is an abundant number, since it is smaller than the sum of its proper divisors (2266960).

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

1392528 is a wasteful number, since it uses less digits than its factorization.

1392528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 505 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 1392528 is about 1180.0542360417. The cubic root of 1392528 is about 111.6695189985.

The spelling of 1392528 in words is "one million, three hundred ninety-two thousand, five hundred twenty-eight".