1366040 has 64 divisors (see below), whose sum is σ = 3447360. Its totient is φ = 483840.

The previous prime is 1366031. The next prime is 1366087. The reversal of 1366040 is 406631.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19205 + ... + 19275.

It is an arithmetic number, because the mean of its divisors is an integer number (53865).

2^1366040 is an apocalyptic number.

1366040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1366040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1723680).

1366040 is an abundant number, since it is smaller than the sum of its proper divisors (2081320).

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

1366040 is a wasteful number, since it uses less digits than its factorization.

1366040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1366040 is about 1168.7771387223. Note that the first 3 decimals coincide. The cubic root of 1366040 is about 110.9569402551.

The spelling of 1366040 in words is "one million, three hundred sixty-six thousand, forty".