1380049 has 8 divisors (see below), whose sum is σ = 1520640. Its totient is φ = 1242000.

The previous prime is 1380047. The next prime is 1380053. The reversal of 1380049 is 9400831.

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 1380049 - 2¹ = 1380047 is a prime.

1380049 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1380047) 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, 624 + ... + 1774.

It is an arithmetic number, because the mean of its divisors is an integer number (190080).

2^1380049 is an apocalyptic number.

It is an amenable number.

1380049 is a deficient number, since it is larger than the sum of its proper divisors (140591).

1380049 is a wasteful number, since it uses less digits than its factorization.

1380049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1380049 is about 1174.7548680469. The cubic root of 1380049 is about 111.3349458534.

The spelling of 1380049 in words is "one million, three hundred eighty thousand, forty-nine".