1366488 has 24 divisors (see below), whose sum is σ = 3701100. Its totient is φ = 455472.

The previous prime is 1366483. The next prime is 1366493. The reversal of 1366488 is 8846631.

It is a happy number.

1366488 is a `hidden beast` number, since 1 + 3 + 6 + 648 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1366483) and next prime (1366493).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9418 + ... + 9561.

2^1366488 is an apocalyptic number.

1366488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1366488 is an abundant number, since it is smaller than the sum of its proper divisors (2334612).

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

1366488 is a wasteful number, since it uses less digits than its factorization.

1366488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18991 (or 18984 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 1366488 is about 1168.9687763153. The cubic root of 1366488 is about 110.9690685667.

The spelling of 1366488 in words is "one million, three hundred sixty-six thousand, four hundred eighty-eight".