1392208 has 10 divisors (see below), whose sum is σ = 2697434. Its totient is φ = 696096.

The previous prime is 1392197. The next prime is 1392221. The reversal of 1392208 is 8022931.

It can be written as a sum of positive squares in only one way, i.e., 1065024 + 327184 = 1032^2 + 572^2 .

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, 43491 + ... + 43522.

2^1392208 is an apocalyptic number.

It is an amenable number.

1392208 is a deficient number, since it is larger than the sum of its proper divisors (1305226).

1392208 is an equidigital number, since it uses as much as digits as its factorization.

1392208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87021 (or 87015 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1392208 is about 1179.9186412630. The cubic root of 1392208 is about 111.6609645364.

It can be divided in two parts, 1392 and 208, that added together give a square (1600 = 40²).

The spelling of 1392208 in words is "one million, three hundred ninety-two thousand, two hundred eight".