1387446 has 8 divisors (see below), whose sum is σ = 2774904. Its totient is φ = 462480.

The previous prime is 1387433. The next prime is 1387499. The reversal of 1387446 is 6447831.

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

1387446 is an admirable number.

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, 115615 + ... + 115626.

It is an arithmetic number, because the mean of its divisors is an integer number (346863).

2^1387446 is an apocalyptic number.

1387446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1387446 is a wasteful number, since it uses less digits than its factorization.

1387446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231246.

The product of its digits is 16128, while the sum is 33.

The square root of 1387446 is about 1177.8989769925. The cubic root of 1387446 is about 111.5335082650.

The spelling of 1387446 in words is "one million, three hundred eighty-seven thousand, four hundred forty-six".