1385949 has 4 divisors (see below), whose sum is σ = 1847936. Its totient is φ = 923964.

The previous prime is 1385947. The next prime is 1385953. The reversal of 1385949 is 9495831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1385949 - 2¹ = 1385947 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385947) 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, 230989 + ... + 230994.

It is an arithmetic number, because the mean of its divisors is an integer number (461984).

2^1385949 is an apocalyptic number.

It is an amenable number.

1385949 is a deficient number, since it is larger than the sum of its proper divisors (461987).

1385949 is an equidigital number, since it uses as much as digits as its factorization.

1385949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461986.

The product of its digits is 38880, while the sum is 39.

The square root of 1385949 is about 1177.2633520160. The cubic root of 1385949 is about 111.4933803976.

The spelling of 1385949 in words is "one million, three hundred eighty-five thousand, nine hundred forty-nine".