1382661 has 24 divisors (see below), whose sum is σ = 2418624. Its totient is φ = 743040.

The previous prime is 1382651. The next prime is 1382663. The reversal of 1382661 is 1662831.

It is not a de Polignac number, because 1382661 - 2⁵ = 1382629 is a prime.

1382661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1382663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 426 + ... + 1716.

It is an arithmetic number, because the mean of its divisors is an integer number (100776).

2^1382661 is an apocalyptic number.

It is an amenable number.

1382661 is a deficient number, since it is larger than the sum of its proper divisors (1035963).

1382661 is a wasteful number, since it uses less digits than its factorization.

1382661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321 (or 1318 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1382661 is about 1175.8660638015. The cubic root of 1382661 is about 111.4051422987.

The spelling of 1382661 in words is "one million, three hundred eighty-two thousand, six hundred sixty-one".