1386044 has 36 divisors (see below), whose sum is σ = 2836680. Its totient is φ = 587520.

The previous prime is 1386043. The next prime is 1386053. The reversal of 1386044 is 4406831.

It is a super-2 number, since 2×1386044² = 3842235939872, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12662 + ... + 12770.

2^1386044 is an apocalyptic number.

It is an amenable number.

1386044 is an abundant number, since it is smaller than the sum of its proper divisors (1450636).

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

1386044 is a wasteful number, since it uses less digits than its factorization.

1386044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1386044 is about 1177.3036991363. The cubic root of 1386044 is about 111.4959277807.

The spelling of 1386044 in words is "one million, three hundred eighty-six thousand, forty-four".