1390384 has 20 divisors (see below), whose sum is σ = 2736184. Its totient is φ = 684288.

The previous prime is 1390369. The next prime is 1390387. The reversal of 1390384 is 4830931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424 + ... + 1720.

2^1390384 is an apocalyptic number.

It is an amenable number.

1390384 is a deficient number, since it is larger than the sum of its proper divisors (1345800).

1390384 is a wasteful number, since it uses less digits than its factorization.

1390384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372 (or 1366 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1390384 is about 1179.1454532839. The cubic root of 1390384 is about 111.6121790556.

The spelling of 1390384 in words is "one million, three hundred ninety thousand, three hundred eighty-four".