1380934 has 4 divisors (see below), whose sum is σ = 2071404. Its totient is φ = 690466.

The previous prime is 1380931. The next prime is 1380947. The reversal of 1380934 is 4390831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4390831 = 557 ⋅7883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345232 + ... + 345235.

It is an arithmetic number, because the mean of its divisors is an integer number (517851).

2^1380934 is an apocalyptic number.

1380934 is a deficient number, since it is larger than the sum of its proper divisors (690470).

1380934 is an equidigital number, since it uses as much as digits as its factorization.

1380934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690469.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1380934 is about 1175.1314820053. The cubic root of 1380934 is about 111.3587397845.

The spelling of 1380934 in words is "one million, three hundred eighty thousand, nine hundred thirty-four".