1390336 has 18 divisors (see below), whose sum is σ = 2775752. Its totient is φ = 695040.

The previous prime is 1390331. The next prime is 1390339. The reversal of 1390336 is 6330931.

It is a self number, because there is not a number n which added to its sum of digits gives 1390336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2460 + ... + 2971.

2^1390336 is an apocalyptic number.

1390336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1390336 is a deficient number, since it is larger than the sum of its proper divisors (1385416).

1390336 is an frugal number, since it uses more digits than its factorization.

1390336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5447 (or 5433 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 1390336 is about 1179.1250993851. The cubic root of 1390336 is about 111.6108946512.

The spelling of 1390336 in words is "one million, three hundred ninety thousand, three hundred thirty-six".