1392016 has 30 divisors (see below), whose sum is σ = 2858262. Its totient is φ = 656640.

The previous prime is 1392007. The next prime is 1392089. The reversal of 1392016 is 6102931.

It can be written as a sum of positive squares in only one way, i.e., 1299600 + 92416 = 1140^2 + 304^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5656 + ... + 5896.

2^1392016 is an apocalyptic number.

1392016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1392016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1429131).

1392016 is an abundant number, since it is smaller than the sum of its proper divisors (1466246).

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

1392016 is a wasteful number, since it uses less digits than its factorization.

1392016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1392016 is about 1179.8372769158. The cubic root of 1392016 is about 111.6558312300.

Adding to 1392016 its reverse (6102931), we get a palindrome (7494947).

Subtracting 1392016 from its reverse (6102931), we obtain a triangular number (4710915 = T₃₀₆₉).

It can be divided in two parts, 13 and 92016, that added together give a palindrome (92029).

The spelling of 1392016 in words is "one million, three hundred ninety-two thousand, sixteen".