1386040 has 16 divisors (see below), whose sum is σ = 3118680. Its totient is φ = 554400.

The previous prime is 1386037. The next prime is 1386043. The reversal of 1386040 is 406831.

1386040 = T₂₄₃ + T₂₄₄ + ... + T₂₈₂.

It is an interprime number because it is at equal distance from previous prime (1386037) and next prime (1386043).

It is a super-2 number, since 2×1386040² = 3842213763200, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 17286 + ... + 17365.

2^1386040 is an apocalyptic number.

1386040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1386040 is an abundant number, since it is smaller than the sum of its proper divisors (1732640).

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

1386040 is a wasteful number, since it uses less digits than its factorization.

1386040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34662 (or 34658 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1386040 is about 1177.3020003381. The cubic root of 1386040 is about 111.4958205248.

The spelling of 1386040 in words is "one million, three hundred eighty-six thousand, forty".