1389524 has 12 divisors (see below), whose sum is σ = 2440704. Its totient is φ = 692184.

The previous prime is 1389511. The next prime is 1389533. The reversal of 1389524 is 4259831.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1079 + ... + 1985.

It is an arithmetic number, because the mean of its divisors is an integer number (203392).

2^1389524 is an apocalyptic number.

It is an amenable number.

1389524 is a deficient number, since it is larger than the sum of its proper divisors (1051180).

1389524 is a wasteful number, since it uses less digits than its factorization.

1389524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294 (or 1292 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 1389524 is about 1178.7807260046. The cubic root of 1389524 is about 111.5891623276.

The spelling of 1389524 in words is "one million, three hundred eighty-nine thousand, five hundred twenty-four".