1380549 has 8 divisors (see below), whose sum is σ = 1854720. Its totient is φ = 913376.

The previous prime is 1380517. The next prime is 1380551. The reversal of 1380549 is 9450831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1380549 - 2⁵ = 1380517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1269 + ... + 2090.

It is an arithmetic number, because the mean of its divisors is an integer number (231840).

2^1380549 is an apocalyptic number.

It is an amenable number.

1380549 is a deficient number, since it is larger than the sum of its proper divisors (474171).

1380549 is a wasteful number, since it uses less digits than its factorization.

1380549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1380549 is about 1174.9676591294. The cubic root of 1380549 is about 111.3483900019.

The spelling of 1380549 in words is "one million, three hundred eighty thousand, five hundred forty-nine".