1380242 has 8 divisors (see below), whose sum is σ = 2076732. Its totient is φ = 688000.

The previous prime is 1380241. The next prime is 1380251. The reversal of 1380242 is 2420831.

It can be written as a sum of positive squares in 2 ways, for example, as 1100401 + 279841 = 1049^2 + 529^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1380241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59 + ... + 1662.

2^1380242 is an apocalyptic number.

1380242 is a deficient number, since it is larger than the sum of its proper divisors (696490).

1380242 is a wasteful number, since it uses less digits than its factorization.

1380242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1380242 is about 1174.8370099720. The cubic root of 1380242 is about 111.3401356795.

The spelling of 1380242 in words is "one million, three hundred eighty thousand, two hundred forty-two".