1389446 has 8 divisors (see below), whose sum is σ = 2115480. Its totient is φ = 684288.

The previous prime is 1389439. The next prime is 1389469. The reversal of 1389446 is 6449831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5051 + ... + 5318.

It is an arithmetic number, because the mean of its divisors is an integer number (264435).

2^1389446 is an apocalyptic number.

1389446 is a deficient number, since it is larger than the sum of its proper divisors (726034).

1389446 is a wasteful number, since it uses less digits than its factorization.

1389446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10438.

The product of its digits is 20736, while the sum is 35.

The square root of 1389446 is about 1178.7476405067. The cubic root of 1389446 is about 111.5870742942.

The spelling of 1389446 in words is "one million, three hundred eighty-nine thousand, four hundred forty-six".